215853183

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1637}}^1$

素因数の和:1693

約数の個数: 72

約数和(自身を含む): 407822688

約数和(自身を除く): 191969505

約数列:

[1, 3, 7, 9, 13, 21, 23, 39, 49, 63, 69, 91, 117, 147, 161, 207, 273, 299, 441, 483, 637, 819, 897, 1127, 1449, 1637, 1911, 2093, 2691, 3381, 4911, 5733, 6279, 10143, 11459, 14651, 14733, 18837, 21281, 34377, 37651, 43953, 63843, 80213, 103131, 112953, 131859, 148967, 191529, 240639, 263557, 338859, 446901, 489463, 721917, 790671, 1042769, 1340703, 1468389, 1844899, 2372013, 3128307, 3426241, 4405167, 5534697, 9384921, 10278723, 16604091, 23983687, 30836169, 71951061, 215853183]

約数ペア:

[(1, 215853183), (3, 71951061), (7, 30836169), (9, 23983687), (13, 16604091), (21, 10278723), (23, 9384921), (39, 5534697), (49, 4405167), (63, 3426241), (69, 3128307), (91, 2372013), (117, 1844899), (147, 1468389), (161, 1340703), (207, 1042769), (273, 790671), (299, 721917), (441, 489463), (483, 446901), (637, 338859), (819, 263557), (897, 240639), (1127, 191529), (1449, 148967), (1637, 131859), (1911, 112953), (2093, 103131), (2691, 80213), (3381, 63843), (4911, 43953), (5733, 37651), (6279, 34377), (10143, 21281), (11459, 18837), (14651, 14733)]