21327472

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{359}}^1$

素因数の和:493

約数の個数: 40

約数和(自身を含む): 42854400

約数和(自身を除く): 21526928

約数列:

[1, 2, 4, 8, 16, 47, 79, 94, 158, 188, 316, 359, 376, 632, 718, 752, 1264, 1436, 2872, 3713, 5744, 7426, 14852, 16873, 28361, 29704, 33746, 56722, 59408, 67492, 113444, 134984, 226888, 269968, 453776, 1332967, 2665934, 5331868, 10663736, 21327472]

約数ペア:

[(1, 21327472), (2, 10663736), (4, 5331868), (8, 2665934), (16, 1332967), (47, 453776), (79, 269968), (94, 226888), (158, 134984), (188, 113444), (316, 67492), (359, 59408), (376, 56722), (632, 33746), (718, 29704), (752, 28361), (1264, 16873), (1436, 14852), (2872, 7426), (3713, 5744)]