20701716

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:166

約数の個数: 144

約数和(自身を含む): 63201600

約数和(自身を除く): 42499884

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 19, 21, 28, 34, 38, 42, 49, 51, 57, 68, 76, 84, 98, 102, 109, 114, 119, 133, 147, 196, 204, 218, 228, 238, 266, 294, 323, 327, 357, 399, 436, 476, 532, 588, 646, 654, 714, 763, 798, 833, 931, 969, 1292, 1308, 1428, 1526, 1596, 1666, 1853, 1862, 1938, 2071, 2261, 2289, 2499, 2793, 3052, 3332, 3706, 3724, 3876, 4142, 4522, 4578, 4998, 5341, 5559, 5586, 6213, 6783, 7412, 8284, 9044, 9156, 9996, 10682, 11118, 11172, 12426, 12971, 13566, 14497, 15827, 16023, 21364, 22236, 24852, 25942, 27132, 28994, 31654, 32046, 35207, 38913, 43491, 47481, 51884, 57988, 63308, 64092, 70414, 77826, 86982, 90797, 94962, 101479, 105621, 140828, 155652, 173964, 181594, 189924, 202958, 211242, 246449, 272391, 304437, 363188, 405916, 422484, 492898, 544782, 608874, 739347, 985796, 1089564, 1217748, 1478694, 1725143, 2957388, 3450286, 5175429, 6900572, 10350858, 20701716]

約数ペア:

[(1, 20701716), (2, 10350858), (3, 6900572), (4, 5175429), (6, 3450286), (7, 2957388), (12, 1725143), (14, 1478694), (17, 1217748), (19, 1089564), (21, 985796), (28, 739347), (34, 608874), (38, 544782), (42, 492898), (49, 422484), (51, 405916), (57, 363188), (68, 304437), (76, 272391), (84, 246449), (98, 211242), (102, 202958), (109, 189924), (114, 181594), (119, 173964), (133, 155652), (147, 140828), (196, 105621), (204, 101479), (218, 94962), (228, 90797), (238, 86982), (266, 77826), (294, 70414), (323, 64092), (327, 63308), (357, 57988), (399, 51884), (436, 47481), (476, 43491), (532, 38913), (588, 35207), (646, 32046), (654, 31654), (714, 28994), (763, 27132), (798, 25942), (833, 24852), (931, 22236), (969, 21364), (1292, 16023), (1308, 15827), (1428, 14497), (1526, 13566), (1596, 12971), (1666, 12426), (1853, 11172), (1862, 11118), (1938, 10682), (2071, 9996), (2261, 9156), (2289, 9044), (2499, 8284), (2793, 7412), (3052, 6783), (3332, 6213), (3706, 5586), (3724, 5559), (3876, 5341), (4142, 4998), (4522, 4578)]