21270212

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{179}}^1\times {\mathrm{487}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 38122560

約数和(自身を除く): 16852348

約数列:

[1, 2, 4, 61, 122, 179, 244, 358, 487, 716, 974, 1948, 10919, 21838, 29707, 43676, 59414, 87173, 118828, 174346, 348692, 5317553, 10635106, 21270212]

約数ペア:

[(1, 21270212), (2, 10635106), (4, 5317553), (61, 348692), (122, 174346), (179, 118828), (244, 87173), (358, 59414), (487, 43676), (716, 29707), (974, 21838), (1948, 10919)]