21406424

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{5563}}^1$

素因数の和:5619

約数の個数: 32

約数和(自身を含む): 44400720

約数和(自身を除く): 22994296

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 296, 481, 962, 1924, 3848, 5563, 11126, 22252, 44504, 72319, 144638, 205831, 289276, 411662, 578552, 823324, 1646648, 2675803, 5351606, 10703212, 21406424]

約数ペア:

[(1, 21406424), (2, 10703212), (4, 5351606), (8, 2675803), (13, 1646648), (26, 823324), (37, 578552), (52, 411662), (74, 289276), (104, 205831), (148, 144638), (296, 72319), (481, 44504), (962, 22252), (1924, 11126), (3848, 5563)]