21411540

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13217}}^1$

素因数の和:13238

約数の個数: 60

約数和(自身を含む): 67173876

約数和(自身を除く): 45762336

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 13217, 26434, 39651, 52868, 66085, 79302, 118953, 132170, 158604, 198255, 237906, 264340, 356859, 396510, 475812, 594765, 713718, 793020, 1070577, 1189530, 1427436, 1784295, 2141154, 2379060, 3568590, 4282308, 5352885, 7137180, 10705770, 21411540]

約数ペア:

[(1, 21411540), (2, 10705770), (3, 7137180), (4, 5352885), (5, 4282308), (6, 3568590), (9, 2379060), (10, 2141154), (12, 1784295), (15, 1427436), (18, 1189530), (20, 1070577), (27, 793020), (30, 713718), (36, 594765), (45, 475812), (54, 396510), (60, 356859), (81, 264340), (90, 237906), (108, 198255), (135, 158604), (162, 132170), (180, 118953), (270, 79302), (324, 66085), (405, 52868), (540, 39651), (810, 26434), (1620, 13217)]