217871658

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{53}}^2\times {\mathrm{139}}^1$

素因数の和:284

約数の個数: 72

約数和(自身を含む): 500223360

約数和(自身を除く): 282351702

約数列:

[1, 2, 3, 6, 9, 18, 31, 53, 62, 93, 106, 139, 159, 186, 278, 279, 318, 417, 477, 558, 834, 954, 1251, 1643, 2502, 2809, 3286, 4309, 4929, 5618, 7367, 8427, 8618, 9858, 12927, 14734, 14787, 16854, 22101, 25281, 25854, 29574, 38781, 44202, 50562, 66303, 77562, 87079, 132606, 174158, 228377, 261237, 390451, 456754, 522474, 685131, 780902, 783711, 1171353, 1370262, 1567422, 2055393, 2342706, 3514059, 4110786, 7028118, 12103981, 24207962, 36311943, 72623886, 108935829, 217871658]

約数ペア:

[(1, 217871658), (2, 108935829), (3, 72623886), (6, 36311943), (9, 24207962), (18, 12103981), (31, 7028118), (53, 4110786), (62, 3514059), (93, 2342706), (106, 2055393), (139, 1567422), (159, 1370262), (186, 1171353), (278, 783711), (279, 780902), (318, 685131), (417, 522474), (477, 456754), (558, 390451), (834, 261237), (954, 228377), (1251, 174158), (1643, 132606), (2502, 87079), (2809, 77562), (3286, 66303), (4309, 50562), (4929, 44202), (5618, 38781), (7367, 29574), (8427, 25854), (8618, 25281), (9858, 22101), (12927, 16854), (14734, 14787)]