21632765

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{349}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 34473600

約数和(自身を除く): 12840835

約数列:

[1, 5, 7, 11, 23, 35, 49, 55, 77, 115, 161, 245, 253, 349, 385, 539, 805, 1127, 1265, 1745, 1771, 2443, 2695, 3839, 5635, 8027, 8855, 12215, 12397, 17101, 19195, 26873, 40135, 56189, 61985, 85505, 88297, 134365, 188111, 280945, 393323, 441485, 618079, 940555, 1966615, 3090395, 4326553, 21632765]

約数ペア:

[(1, 21632765), (5, 4326553), (7, 3090395), (11, 1966615), (23, 940555), (35, 618079), (49, 441485), (55, 393323), (77, 280945), (115, 188111), (161, 134365), (245, 88297), (253, 85505), (349, 61985), (385, 56189), (539, 40135), (805, 26873), (1127, 19195), (1265, 17101), (1745, 12397), (1771, 12215), (2443, 8855), (2695, 8027), (3839, 5635)]