21261912

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6661}}^1$

素因数の和:6696

約数の個数: 64

約数和(自身を含む): 63955200

約数和(自身を除く): 42693288

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 19, 21, 24, 28, 38, 42, 56, 57, 76, 84, 114, 133, 152, 168, 228, 266, 399, 456, 532, 798, 1064, 1596, 3192, 6661, 13322, 19983, 26644, 39966, 46627, 53288, 79932, 93254, 126559, 139881, 159864, 186508, 253118, 279762, 373016, 379677, 506236, 559524, 759354, 885913, 1012472, 1119048, 1518708, 1771826, 2657739, 3037416, 3543652, 5315478, 7087304, 10630956, 21261912]

約数ペア:

[(1, 21261912), (2, 10630956), (3, 7087304), (4, 5315478), (6, 3543652), (7, 3037416), (8, 2657739), (12, 1771826), (14, 1518708), (19, 1119048), (21, 1012472), (24, 885913), (28, 759354), (38, 559524), (42, 506236), (56, 379677), (57, 373016), (76, 279762), (84, 253118), (114, 186508), (133, 159864), (152, 139881), (168, 126559), (228, 93254), (266, 79932), (399, 53288), (456, 46627), (532, 39966), (798, 26644), (1064, 19983), (1596, 13322), (3192, 6661)]