21400930516

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^3\times {\mathrm{15919}}^1$

素因数の和:15994

約数の個数: 72

約数和(自身を含む): 45989059200

約数和(自身を除く): 24588128684

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 361, 532, 722, 931, 1444, 1862, 2527, 3724, 5054, 6859, 10108, 13718, 15919, 17689, 27436, 31838, 35378, 48013, 63676, 70756, 96026, 111433, 192052, 222866, 302461, 336091, 445732, 604922, 672182, 780031, 1209844, 1344364, 1560062, 2117227, 3120124, 4234454, 5746759, 8468908, 11493518, 14820589, 22987036, 29641178, 40227313, 59282356, 80454626, 109188421, 160909252, 218376842, 281591191, 436753684, 563182382, 764318947, 1126364764, 1528637894, 3057275788, 5350232629, 10700465258, 21400930516]

約数ペア:

[(1, 21400930516), (2, 10700465258), (4, 5350232629), (7, 3057275788), (14, 1528637894), (19, 1126364764), (28, 764318947), (38, 563182382), (49, 436753684), (76, 281591191), (98, 218376842), (133, 160909252), (196, 109188421), (266, 80454626), (361, 59282356), (532, 40227313), (722, 29641178), (931, 22987036), (1444, 14820589), (1862, 11493518), (2527, 8468908), (3724, 5746759), (5054, 4234454), (6859, 3120124), (10108, 2117227), (13718, 1560062), (15919, 1344364), (17689, 1209844), (27436, 780031), (31838, 672182), (35378, 604922), (48013, 445732), (63676, 336091), (70756, 302461), (96026, 222866), (111433, 192052)]