1988088921

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1151}}^1$

素因数の和:1236

約数の個数: 128

約数和(自身を含む): 3922329600

約数和(自身を除く): 1934240679

約数列:

[1, 3, 7, 9, 13, 19, 21, 27, 37, 39, 57, 63, 91, 111, 117, 133, 171, 189, 247, 259, 273, 333, 351, 399, 481, 513, 703, 741, 777, 819, 999, 1151, 1197, 1443, 1729, 2109, 2223, 2331, 2457, 3367, 3453, 3591, 4329, 4921, 5187, 6327, 6669, 6993, 8057, 9139, 10101, 10359, 12987, 14763, 14963, 15561, 18981, 21869, 24171, 27417, 30303, 31077, 42587, 44289, 44889, 46683, 63973, 65607, 72513, 82251, 90909, 104741, 127761, 132867, 134667, 153083, 191919, 196821, 217539, 246753, 284297, 298109, 314223, 383283, 404001, 459249, 553631, 575757, 590463, 809153, 852891, 894327, 942669, 1149849, 1377747, 1660893, 1727271, 1990079, 2427459, 2558673, 2682981, 2828007, 3875417, 4133241, 4982679, 5664071, 5970237, 7282377, 7676019, 8048943, 10518989, 11626251, 14948037, 16992213, 17910711, 21847131, 31556967, 34878753, 50976639, 53732133, 73632923, 94670901, 104636259, 152929917, 220898769, 284012703, 662696307, 1988088921]

約数ペア:

[(1, 1988088921), (3, 662696307), (7, 284012703), (9, 220898769), (13, 152929917), (19, 104636259), (21, 94670901), (27, 73632923), (37, 53732133), (39, 50976639), (57, 34878753), (63, 31556967), (91, 21847131), (111, 17910711), (117, 16992213), (133, 14948037), (171, 11626251), (189, 10518989), (247, 8048943), (259, 7676019), (273, 7282377), (333, 5970237), (351, 5664071), (399, 4982679), (481, 4133241), (513, 3875417), (703, 2828007), (741, 2682981), (777, 2558673), (819, 2427459), (999, 1990079), (1151, 1727271), (1197, 1660893), (1443, 1377747), (1729, 1149849), (2109, 942669), (2223, 894327), (2331, 852891), (2457, 809153), (3367, 590463), (3453, 575757), (3591, 553631), (4329, 459249), (4921, 404001), (5187, 383283), (6327, 314223), (6669, 298109), (6993, 284297), (8057, 246753), (9139, 217539), (10101, 196821), (10359, 191919), (12987, 153083), (14763, 134667), (14963, 132867), (15561, 127761), (18981, 104741), (21869, 90909), (24171, 82251), (27417, 72513), (30303, 65607), (31077, 63973), (42587, 46683), (44289, 44889)]