21542732

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 41879040

約数和(自身を除く): 20336308

約数列:

[1, 2, 4, 19, 37, 38, 47, 74, 76, 94, 148, 163, 188, 326, 652, 703, 893, 1406, 1739, 1786, 2812, 3097, 3478, 3572, 6031, 6194, 6956, 7661, 12062, 12388, 15322, 24124, 30644, 33041, 66082, 114589, 132164, 145559, 229178, 283457, 291118, 458356, 566914, 582236, 1133828, 5385683, 10771366, 21542732]

約数ペア:

[(1, 21542732), (2, 10771366), (4, 5385683), (19, 1133828), (37, 582236), (38, 566914), (47, 458356), (74, 291118), (76, 283457), (94, 229178), (148, 145559), (163, 132164), (188, 114589), (326, 66082), (652, 33041), (703, 30644), (893, 24124), (1406, 15322), (1739, 12388), (1786, 12062), (2812, 7661), (3097, 6956), (3478, 6194), (3572, 6031)]