18420472

素因数分解:

$2^3\times 7^5\times {\mathrm{137}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 40588560

約数和(自身を除く): 22168088

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 137, 196, 274, 343, 392, 548, 686, 959, 1096, 1372, 1918, 2401, 2744, 3836, 4802, 6713, 7672, 9604, 13426, 16807, 19208, 26852, 33614, 46991, 53704, 67228, 93982, 134456, 187964, 328937, 375928, 657874, 1315748, 2302559, 2631496, 4605118, 9210236, 18420472]

約数ペア:

[(1, 18420472), (2, 9210236), (4, 4605118), (7, 2631496), (8, 2302559), (14, 1315748), (28, 657874), (49, 375928), (56, 328937), (98, 187964), (137, 134456), (196, 93982), (274, 67228), (343, 53704), (392, 46991), (548, 33614), (686, 26852), (959, 19208), (1096, 16807), (1372, 13426), (1918, 9604), (2401, 7672), (2744, 6713), (3836, 4802)]