21980712

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{70451}}^1$

素因数の和:70473

約数の個数: 32

約数和(自身を含む): 59179680

約数和(自身を除く): 37198968

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 70451, 140902, 211353, 281804, 422706, 563608, 845412, 915863, 1690824, 1831726, 2747589, 3663452, 5495178, 7326904, 10990356, 21980712]

約数ペア:

[(1, 21980712), (2, 10990356), (3, 7326904), (4, 5495178), (6, 3663452), (8, 2747589), (12, 1831726), (13, 1690824), (24, 915863), (26, 845412), (39, 563608), (52, 422706), (78, 281804), (104, 211353), (156, 140902), (312, 70451)]