21349416

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:175

約数の個数: 128

約数和(自身を含む): 63452160

約数和(自身を除く): 42102744

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 17, 22, 24, 33, 34, 44, 51, 66, 67, 68, 71, 88, 102, 132, 134, 136, 142, 187, 201, 204, 213, 264, 268, 284, 374, 402, 408, 426, 536, 561, 568, 737, 748, 781, 804, 852, 1122, 1139, 1207, 1474, 1496, 1562, 1608, 1704, 2211, 2244, 2278, 2343, 2414, 2948, 3124, 3417, 3621, 4422, 4488, 4556, 4686, 4757, 4828, 5896, 6248, 6834, 7242, 8844, 9112, 9372, 9514, 9656, 12529, 13277, 13668, 14271, 14484, 17688, 18744, 19028, 25058, 26554, 27336, 28542, 28968, 37587, 38056, 39831, 50116, 52327, 53108, 57084, 75174, 79662, 80869, 100232, 104654, 106216, 114168, 150348, 156981, 159324, 161738, 209308, 242607, 300696, 313962, 318648, 323476, 418616, 485214, 627924, 646952, 889559, 970428, 1255848, 1779118, 1940856, 2668677, 3558236, 5337354, 7116472, 10674708, 21349416]

約数ペア:

[(1, 21349416), (2, 10674708), (3, 7116472), (4, 5337354), (6, 3558236), (8, 2668677), (11, 1940856), (12, 1779118), (17, 1255848), (22, 970428), (24, 889559), (33, 646952), (34, 627924), (44, 485214), (51, 418616), (66, 323476), (67, 318648), (68, 313962), (71, 300696), (88, 242607), (102, 209308), (132, 161738), (134, 159324), (136, 156981), (142, 150348), (187, 114168), (201, 106216), (204, 104654), (213, 100232), (264, 80869), (268, 79662), (284, 75174), (374, 57084), (402, 53108), (408, 52327), (426, 50116), (536, 39831), (561, 38056), (568, 37587), (737, 28968), (748, 28542), (781, 27336), (804, 26554), (852, 25058), (1122, 19028), (1139, 18744), (1207, 17688), (1474, 14484), (1496, 14271), (1562, 13668), (1608, 13277), (1704, 12529), (2211, 9656), (2244, 9514), (2278, 9372), (2343, 9112), (2414, 8844), (2948, 7242), (3124, 6834), (3417, 6248), (3621, 5896), (4422, 4828), (4488, 4757), (4556, 4686)]