21018736

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{467}}^1$

素因数の和:601

約数の個数: 40

約数和(自身を含む): 42653520

約数和(自身を除く): 21634784

約数列:

[1, 2, 4, 8, 16, 29, 58, 97, 116, 194, 232, 388, 464, 467, 776, 934, 1552, 1868, 2813, 3736, 5626, 7472, 11252, 13543, 22504, 27086, 45008, 45299, 54172, 90598, 108344, 181196, 216688, 362392, 724784, 1313671, 2627342, 5254684, 10509368, 21018736]

約数ペア:

[(1, 21018736), (2, 10509368), (4, 5254684), (8, 2627342), (16, 1313671), (29, 724784), (58, 362392), (97, 216688), (116, 181196), (194, 108344), (232, 90598), (388, 54172), (464, 45299), (467, 45008), (776, 27086), (934, 22504), (1552, 13543), (1868, 11252), (2813, 7472), (3736, 5626)]