21053992904

素因数分解:

$2^3\times 7^1\times {\mathrm{1217}}^1\times {\mathrm{308927}}^1$

素因数の和:310157

約数の個数: 32

約数和(自身を含む): 45152916480

約数和(自身を除く): 24098923576

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 1217, 2434, 4868, 8519, 9736, 17038, 34076, 68152, 308927, 617854, 1235708, 2162489, 2471416, 4324978, 8649956, 17299912, 375964159, 751928318, 1503856636, 2631749113, 3007713272, 5263498226, 10526996452, 21053992904]

約数ペア:

[(1, 21053992904), (2, 10526996452), (4, 5263498226), (7, 3007713272), (8, 2631749113), (14, 1503856636), (28, 751928318), (56, 375964159), (1217, 17299912), (2434, 8649956), (4868, 4324978), (8519, 2471416), (9736, 2162489), (17038, 1235708), (34076, 617854), (68152, 308927)]