21911500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{3371}}^1$

素因数の和:3403

約数の個数: 48

約数和(自身を含む): 51551136

約数和(自身を除く): 29639636

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3250, 3371, 6500, 6742, 13484, 16855, 33710, 43823, 67420, 84275, 87646, 168550, 175292, 219115, 337100, 421375, 438230, 842750, 876460, 1095575, 1685500, 2191150, 4382300, 5477875, 10955750, 21911500]

約数ペア:

[(1, 21911500), (2, 10955750), (4, 5477875), (5, 4382300), (10, 2191150), (13, 1685500), (20, 1095575), (25, 876460), (26, 842750), (50, 438230), (52, 421375), (65, 337100), (100, 219115), (125, 175292), (130, 168550), (250, 87646), (260, 84275), (325, 67420), (500, 43823), (650, 33710), (1300, 16855), (1625, 13484), (3250, 6742), (3371, 6500)]