20925884

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{239}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 22619716

約数列:

[1, 2, 4, 7, 14, 28, 53, 59, 106, 118, 212, 236, 239, 371, 413, 478, 742, 826, 956, 1484, 1652, 1673, 3127, 3346, 6254, 6692, 12508, 12667, 14101, 21889, 25334, 28202, 43778, 50668, 56404, 87556, 88669, 98707, 177338, 197414, 354676, 394828, 747353, 1494706, 2989412, 5231471, 10462942, 20925884]

約数ペア:

[(1, 20925884), (2, 10462942), (4, 5231471), (7, 2989412), (14, 1494706), (28, 747353), (53, 394828), (59, 354676), (106, 197414), (118, 177338), (212, 98707), (236, 88669), (239, 87556), (371, 56404), (413, 50668), (478, 43778), (742, 28202), (826, 25334), (956, 21889), (1484, 14101), (1652, 12667), (1673, 12508), (3127, 6692), (3346, 6254)]