20695724

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{211}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 43309056

約数和(自身を除く): 22613332

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 113, 124, 211, 217, 226, 422, 434, 452, 791, 844, 868, 1477, 1582, 2954, 3164, 3503, 5908, 6541, 7006, 13082, 14012, 23843, 24521, 26164, 45787, 47686, 49042, 91574, 95372, 98084, 166901, 183148, 333802, 667604, 739133, 1478266, 2956532, 5173931, 10347862, 20695724]

約数ペア:

[(1, 20695724), (2, 10347862), (4, 5173931), (7, 2956532), (14, 1478266), (28, 739133), (31, 667604), (62, 333802), (113, 183148), (124, 166901), (211, 98084), (217, 95372), (226, 91574), (422, 49042), (434, 47686), (452, 45787), (791, 26164), (844, 24521), (868, 23843), (1477, 14012), (1582, 13082), (2954, 7006), (3164, 6541), (3503, 5908)]