21704784

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:492

約数の個数: 80

約数和(自身を含む): 60406848

約数和(自身を除く): 38702064

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 67, 68, 102, 134, 136, 201, 204, 268, 272, 397, 402, 408, 536, 794, 804, 816, 1072, 1139, 1191, 1588, 1608, 2278, 2382, 3176, 3216, 3417, 4556, 4764, 6352, 6749, 6834, 9112, 9528, 13498, 13668, 18224, 19056, 20247, 26599, 26996, 27336, 40494, 53198, 53992, 54672, 79797, 80988, 106396, 107984, 159594, 161976, 212792, 319188, 323952, 425584, 452183, 638376, 904366, 1276752, 1356549, 1808732, 2713098, 3617464, 5426196, 7234928, 10852392, 21704784]

約数ペア:

[(1, 21704784), (2, 10852392), (3, 7234928), (4, 5426196), (6, 3617464), (8, 2713098), (12, 1808732), (16, 1356549), (17, 1276752), (24, 904366), (34, 638376), (48, 452183), (51, 425584), (67, 323952), (68, 319188), (102, 212792), (134, 161976), (136, 159594), (201, 107984), (204, 106396), (268, 80988), (272, 79797), (397, 54672), (402, 53992), (408, 53198), (536, 40494), (794, 27336), (804, 26996), (816, 26599), (1072, 20247), (1139, 19056), (1191, 18224), (1588, 13668), (1608, 13498), (2278, 9528), (2382, 9112), (3176, 6834), (3216, 6749), (3417, 6352), (4556, 4764)]