21684468

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{607}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 54817280

約数和(自身を除く): 33132812

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 229, 458, 607, 687, 916, 1214, 1374, 1821, 2428, 2748, 2977, 3642, 5954, 7284, 7891, 8931, 11908, 15782, 17862, 23673, 31564, 35724, 47346, 94692, 139003, 278006, 417009, 556012, 834018, 1668036, 1807039, 3614078, 5421117, 7228156, 10842234, 21684468]

約数ペア:

[(1, 21684468), (2, 10842234), (3, 7228156), (4, 5421117), (6, 3614078), (12, 1807039), (13, 1668036), (26, 834018), (39, 556012), (52, 417009), (78, 278006), (156, 139003), (229, 94692), (458, 47346), (607, 35724), (687, 31564), (916, 23673), (1214, 17862), (1374, 15782), (1821, 11908), (2428, 8931), (2748, 7891), (2977, 7284), (3642, 5954)]