20914812

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^2\times {\mathrm{263}}^1$

素因数の和:367

約数の個数: 54

約数和(自身を含む): 54222168

約数和(自身を除く): 33307356

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 263, 282, 423, 526, 564, 789, 846, 1052, 1578, 1692, 2209, 2367, 3156, 4418, 4734, 6627, 8836, 9468, 12361, 13254, 19881, 24722, 26508, 37083, 39762, 49444, 74166, 79524, 111249, 148332, 222498, 444996, 580967, 1161934, 1742901, 2323868, 3485802, 5228703, 6971604, 10457406, 20914812]

約数ペア:

[(1, 20914812), (2, 10457406), (3, 6971604), (4, 5228703), (6, 3485802), (9, 2323868), (12, 1742901), (18, 1161934), (36, 580967), (47, 444996), (94, 222498), (141, 148332), (188, 111249), (263, 79524), (282, 74166), (423, 49444), (526, 39762), (564, 37083), (789, 26508), (846, 24722), (1052, 19881), (1578, 13254), (1692, 12361), (2209, 9468), (2367, 8836), (3156, 6627), (4418, 4734)]