21727065

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{887}}^1$

素因数の和:989

約数の個数: 32

約数和(自身を含む): 36827136

約数和(自身を除く): 15100071

約数列:

[1, 3, 5, 15, 23, 69, 71, 115, 213, 345, 355, 887, 1065, 1633, 2661, 4435, 4899, 8165, 13305, 20401, 24495, 61203, 62977, 102005, 188931, 306015, 314885, 944655, 1448471, 4345413, 7242355, 21727065]

約数ペア:

[(1, 21727065), (3, 7242355), (5, 4345413), (15, 1448471), (23, 944655), (69, 314885), (71, 306015), (115, 188931), (213, 102005), (345, 62977), (355, 61203), (887, 24495), (1065, 20401), (1633, 13305), (2661, 8165), (4435, 4899)]