21072144

素因数分解:

$2^4\times 3^1\times {\mathrm{79}}^1\times {\mathrm{5557}}^1$

素因数の和:5647

約数の個数: 40

約数和(自身を含む): 55135360

約数和(自身を除く): 34063216

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 79, 158, 237, 316, 474, 632, 948, 1264, 1896, 3792, 5557, 11114, 16671, 22228, 33342, 44456, 66684, 88912, 133368, 266736, 439003, 878006, 1317009, 1756012, 2634018, 3512024, 5268036, 7024048, 10536072, 21072144]

約数ペア:

[(1, 21072144), (2, 10536072), (3, 7024048), (4, 5268036), (6, 3512024), (8, 2634018), (12, 1756012), (16, 1317009), (24, 878006), (48, 439003), (79, 266736), (158, 133368), (237, 88912), (316, 66684), (474, 44456), (632, 33342), (948, 22228), (1264, 16671), (1896, 11114), (3792, 5557)]