21080590972

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{2833}}^1$

素因数の和:3131

約数の個数: 96

約数和(自身を含む): 45249684480

約数和(自身を除く): 24169093508

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 71, 76, 133, 142, 197, 266, 284, 394, 497, 532, 788, 994, 1349, 1379, 1988, 2698, 2758, 2833, 3743, 5396, 5516, 5666, 7486, 9443, 11332, 13987, 14972, 18886, 19831, 26201, 27974, 37772, 39662, 52402, 53827, 55948, 79324, 97909, 104804, 107654, 195818, 201143, 215308, 265753, 376789, 391636, 402286, 531506, 558101, 753578, 804572, 1063012, 1116202, 1408001, 1507156, 1860271, 2232404, 2816002, 3720542, 3821717, 3906707, 5632004, 7441084, 7643434, 7813414, 10603919, 15286868, 15626828, 21207838, 26752019, 39625171, 42415676, 53504038, 74227433, 79250342, 107008076, 148454866, 158500684, 277376197, 296909732, 554752394, 752878249, 1109504788, 1505756498, 3011512996, 5270147743, 10540295486, 21080590972]

約数ペア:

[(1, 21080590972), (2, 10540295486), (4, 5270147743), (7, 3011512996), (14, 1505756498), (19, 1109504788), (28, 752878249), (38, 554752394), (71, 296909732), (76, 277376197), (133, 158500684), (142, 148454866), (197, 107008076), (266, 79250342), (284, 74227433), (394, 53504038), (497, 42415676), (532, 39625171), (788, 26752019), (994, 21207838), (1349, 15626828), (1379, 15286868), (1988, 10603919), (2698, 7813414), (2758, 7643434), (2833, 7441084), (3743, 5632004), (5396, 3906707), (5516, 3821717), (5666, 3720542), (7486, 2816002), (9443, 2232404), (11332, 1860271), (13987, 1507156), (14972, 1408001), (18886, 1116202), (19831, 1063012), (26201, 804572), (27974, 753578), (37772, 558101), (39662, 531506), (52402, 402286), (53827, 391636), (55948, 376789), (79324, 265753), (97909, 215308), (104804, 201143), (107654, 195818)]