18485684

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 38330880

約数和(自身を除く): 19845196

約数列:

[1, 2, 4, 7, 14, 28, 61, 79, 122, 137, 158, 244, 274, 316, 427, 548, 553, 854, 959, 1106, 1708, 1918, 2212, 3836, 4819, 8357, 9638, 10823, 16714, 19276, 21646, 33428, 33733, 43292, 58499, 67466, 75761, 116998, 134932, 151522, 233996, 303044, 660203, 1320406, 2640812, 4621421, 9242842, 18485684]

約数ペア:

[(1, 18485684), (2, 9242842), (4, 4621421), (7, 2640812), (14, 1320406), (28, 660203), (61, 303044), (79, 233996), (122, 151522), (137, 134932), (158, 116998), (244, 75761), (274, 67466), (316, 58499), (427, 43292), (548, 33733), (553, 33428), (854, 21646), (959, 19276), (1106, 16714), (1708, 10823), (1918, 9638), (2212, 8357), (3836, 4819)]