21290152

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4993}}^1$

素因数の和:5053

約数の個数: 32

約数和(自身を含む): 44047080

約数和(自身を除く): 22756928

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 328, 533, 1066, 2132, 4264, 4993, 9986, 19972, 39944, 64909, 129818, 204713, 259636, 409426, 519272, 818852, 1637704, 2661269, 5322538, 10645076, 21290152]

約数ペア:

[(1, 21290152), (2, 10645076), (4, 5322538), (8, 2661269), (13, 1637704), (26, 818852), (41, 519272), (52, 409426), (82, 259636), (104, 204713), (164, 129818), (328, 64909), (533, 39944), (1066, 19972), (2132, 9986), (4264, 4993)]