21495945

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 35505792

約数和(自身を除く): 14009847

約数列:

[1, 3, 5, 15, 67, 73, 201, 219, 293, 335, 365, 879, 1005, 1095, 1465, 4395, 4891, 14673, 19631, 21389, 24455, 58893, 64167, 73365, 98155, 106945, 294465, 320835, 1433063, 4299189, 7165315, 21495945]

約数ペア:

[(1, 21495945), (3, 7165315), (5, 4299189), (15, 1433063), (67, 320835), (73, 294465), (201, 106945), (219, 98155), (293, 73365), (335, 64167), (365, 58893), (879, 24455), (1005, 21389), (1095, 19631), (1465, 14673), (4395, 4891)]