21677810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{599}}^1$

素因数の和:671

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 28088590

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 47, 55, 70, 77, 94, 110, 154, 235, 329, 385, 470, 517, 599, 658, 770, 1034, 1198, 1645, 2585, 2995, 3290, 3619, 4193, 5170, 5990, 6589, 7238, 8386, 13178, 18095, 20965, 28153, 32945, 36190, 41930, 46123, 56306, 65890, 92246, 140765, 197071, 230615, 281530, 309683, 394142, 461230, 619366, 985355, 1548415, 1970710, 2167781, 3096830, 4335562, 10838905, 21677810]

約数ペア:

[(1, 21677810), (2, 10838905), (5, 4335562), (7, 3096830), (10, 2167781), (11, 1970710), (14, 1548415), (22, 985355), (35, 619366), (47, 461230), (55, 394142), (70, 309683), (77, 281530), (94, 230615), (110, 197071), (154, 140765), (235, 92246), (329, 65890), (385, 56306), (470, 46123), (517, 41930), (599, 36190), (658, 32945), (770, 28153), (1034, 20965), (1198, 18095), (1645, 13178), (2585, 8386), (2995, 7238), (3290, 6589), (3619, 5990), (4193, 5170)]