21041712

素因数分解:

$2^4\times 3^2\times {\mathrm{47}}^1\times {\mathrm{3109}}^1$

素因数の和:3170

約数の個数: 60

約数和(自身を含む): 60159840

約数和(自身を除く): 39118128

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 47, 48, 72, 94, 141, 144, 188, 282, 376, 423, 564, 752, 846, 1128, 1692, 2256, 3109, 3384, 6218, 6768, 9327, 12436, 18654, 24872, 27981, 37308, 49744, 55962, 74616, 111924, 146123, 149232, 223848, 292246, 438369, 447696, 584492, 876738, 1168984, 1315107, 1753476, 2337968, 2630214, 3506952, 5260428, 7013904, 10520856, 21041712]

約数ペア:

[(1, 21041712), (2, 10520856), (3, 7013904), (4, 5260428), (6, 3506952), (8, 2630214), (9, 2337968), (12, 1753476), (16, 1315107), (18, 1168984), (24, 876738), (36, 584492), (47, 447696), (48, 438369), (72, 292246), (94, 223848), (141, 149232), (144, 146123), (188, 111924), (282, 74616), (376, 55962), (423, 49744), (564, 37308), (752, 27981), (846, 24872), (1128, 18654), (1692, 12436), (2256, 9327), (3109, 6768), (3384, 6218)]