18285664

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:287

約数の個数: 48

約数和(自身を含む): 37488528

約数和(自身を除く): 19202864

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 97, 137, 172, 194, 274, 344, 388, 548, 688, 776, 1096, 1376, 1552, 2192, 3104, 4171, 4384, 5891, 8342, 11782, 13289, 16684, 23564, 26578, 33368, 47128, 53156, 66736, 94256, 106312, 133472, 188512, 212624, 425248, 571427, 1142854, 2285708, 4571416, 9142832, 18285664]

約数ペア:

[(1, 18285664), (2, 9142832), (4, 4571416), (8, 2285708), (16, 1142854), (32, 571427), (43, 425248), (86, 212624), (97, 188512), (137, 133472), (172, 106312), (194, 94256), (274, 66736), (344, 53156), (388, 47128), (548, 33368), (688, 26578), (776, 23564), (1096, 16684), (1376, 13289), (1552, 11782), (2192, 8342), (3104, 5891), (4171, 4384)]