21302470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1867}}^1$

素因数の和:2044

約数の個数: 32

約数和(自身を含む): 44114688

約数和(自身を除く): 22812218

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 163, 326, 815, 1141, 1630, 1867, 2282, 3734, 5705, 9335, 11410, 13069, 18670, 26138, 65345, 130690, 304321, 608642, 1521605, 2130247, 3043210, 4260494, 10651235, 21302470]

約数ペア:

[(1, 21302470), (2, 10651235), (5, 4260494), (7, 3043210), (10, 2130247), (14, 1521605), (35, 608642), (70, 304321), (163, 130690), (326, 65345), (815, 26138), (1141, 18670), (1630, 13069), (1867, 11410), (2282, 9335), (3734, 5705)]