20481838

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 35380800

約数和(自身を除く): 14898962

約数列:

[1, 2, 13, 17, 26, 34, 149, 221, 298, 311, 442, 622, 1937, 2533, 3874, 4043, 5066, 5287, 8086, 10574, 32929, 46339, 65858, 68731, 92678, 137462, 602407, 787763, 1204814, 1575526, 10240919, 20481838]

約数ペア:

[(1, 20481838), (2, 10240919), (13, 1575526), (17, 1204814), (26, 787763), (34, 602407), (149, 137462), (221, 92678), (298, 68731), (311, 65858), (442, 46339), (622, 32929), (1937, 10574), (2533, 8086), (3874, 5287), (4043, 5066)]