21719061

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1153}}^1$

素因数の和:1202

約数の個数: 48

約数和(自身を含む): 40325376

約数和(自身を除く): 18606315

約数列:

[1, 3, 7, 9, 13, 21, 23, 39, 63, 69, 91, 117, 161, 207, 273, 299, 483, 819, 897, 1153, 1449, 2093, 2691, 3459, 6279, 8071, 10377, 14989, 18837, 24213, 26519, 44967, 72639, 79557, 104923, 134901, 185633, 238671, 314769, 344747, 556899, 944307, 1034241, 1670697, 2413229, 3102723, 7239687, 21719061]

約数ペア:

[(1, 21719061), (3, 7239687), (7, 3102723), (9, 2413229), (13, 1670697), (21, 1034241), (23, 944307), (39, 556899), (63, 344747), (69, 314769), (91, 238671), (117, 185633), (161, 134901), (207, 104923), (273, 79557), (299, 72639), (483, 44967), (819, 26519), (897, 24213), (1153, 18837), (1449, 14989), (2093, 10377), (2691, 8071), (3459, 6279)]