20984184

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:131

約数の個数: 160

約数和(自身を含む): 65862720

約数和(自身を除く): 44878536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 47, 52, 53, 54, 72, 78, 81, 94, 104, 106, 108, 117, 141, 156, 159, 162, 188, 212, 216, 234, 282, 312, 318, 324, 351, 376, 423, 424, 468, 477, 564, 611, 636, 648, 689, 702, 846, 936, 954, 1053, 1128, 1222, 1269, 1272, 1378, 1404, 1431, 1692, 1833, 1908, 2067, 2106, 2444, 2491, 2538, 2756, 2808, 2862, 3384, 3666, 3807, 3816, 4134, 4212, 4293, 4888, 4982, 5076, 5499, 5512, 5724, 6201, 7332, 7473, 7614, 8268, 8424, 8586, 9964, 10152, 10998, 11448, 12402, 14664, 14946, 15228, 16497, 16536, 17172, 18603, 19928, 21996, 22419, 24804, 29892, 30456, 32383, 32994, 34344, 37206, 43992, 44838, 49491, 49608, 55809, 59784, 64766, 65988, 67257, 74412, 89676, 97149, 98982, 111618, 129532, 131976, 134514, 148824, 179352, 194298, 197964, 201771, 223236, 259064, 269028, 291447, 388596, 395928, 403542, 446472, 538056, 582894, 777192, 807084, 874341, 1165788, 1614168, 1748682, 2331576, 2623023, 3497364, 5246046, 6994728, 10492092, 20984184]

約数ペア:

[(1, 20984184), (2, 10492092), (3, 6994728), (4, 5246046), (6, 3497364), (8, 2623023), (9, 2331576), (12, 1748682), (13, 1614168), (18, 1165788), (24, 874341), (26, 807084), (27, 777192), (36, 582894), (39, 538056), (47, 446472), (52, 403542), (53, 395928), (54, 388596), (72, 291447), (78, 269028), (81, 259064), (94, 223236), (104, 201771), (106, 197964), (108, 194298), (117, 179352), (141, 148824), (156, 134514), (159, 131976), (162, 129532), (188, 111618), (212, 98982), (216, 97149), (234, 89676), (282, 74412), (312, 67257), (318, 65988), (324, 64766), (351, 59784), (376, 55809), (423, 49608), (424, 49491), (468, 44838), (477, 43992), (564, 37206), (611, 34344), (636, 32994), (648, 32383), (689, 30456), (702, 29892), (846, 24804), (936, 22419), (954, 21996), (1053, 19928), (1128, 18603), (1222, 17172), (1269, 16536), (1272, 16497), (1378, 15228), (1404, 14946), (1431, 14664), (1692, 12402), (1833, 11448), (1908, 10998), (2067, 10152), (2106, 9964), (2444, 8586), (2491, 8424), (2538, 8268), (2756, 7614), (2808, 7473), (2862, 7332), (3384, 6201), (3666, 5724), (3807, 5512), (3816, 5499), (4134, 5076), (4212, 4982), (4293, 4888)]