21436456

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{967}}^1$

素因数の和:1153

約数の個数: 32

約数和(自身を含む): 42863040

約数和(自身を除く): 21426584

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 163, 326, 652, 967, 1304, 1934, 2771, 3868, 5542, 7736, 11084, 16439, 22168, 32878, 65756, 131512, 157621, 315242, 630484, 1260968, 2679557, 5359114, 10718228, 21436456]

約数ペア:

[(1, 21436456), (2, 10718228), (4, 5359114), (8, 2679557), (17, 1260968), (34, 630484), (68, 315242), (136, 157621), (163, 131512), (326, 65756), (652, 32878), (967, 22168), (1304, 16439), (1934, 11084), (2771, 7736), (3868, 5542)]