21903975

素因数分解:

$3^2\times 5^2\times {\mathrm{67}}^1\times {\mathrm{1453}}^1$

素因数の和:1536

約数の個数: 36

約数和(自身を含む): 39845416

約数和(自身を除く): 17941441

約数列:

[1, 3, 5, 9, 15, 25, 45, 67, 75, 201, 225, 335, 603, 1005, 1453, 1675, 3015, 4359, 5025, 7265, 13077, 15075, 21795, 36325, 65385, 97351, 108975, 292053, 326925, 486755, 876159, 1460265, 2433775, 4380795, 7301325, 21903975]

約数ペア:

[(1, 21903975), (3, 7301325), (5, 4380795), (9, 2433775), (15, 1460265), (25, 876159), (45, 486755), (67, 326925), (75, 292053), (201, 108975), (225, 97351), (335, 65385), (603, 36325), (1005, 21795), (1453, 15075), (1675, 13077), (3015, 7265), (4359, 5025)]