21286544

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{877}}^1$

素因数の和:963

約数の個数: 40

約数和(自身を含む): 43439928

約数和(自身を除く): 22153384

約数列:

[1, 2, 4, 8, 16, 37, 41, 74, 82, 148, 164, 296, 328, 592, 656, 877, 1517, 1754, 3034, 3508, 6068, 7016, 12136, 14032, 24272, 32449, 35957, 64898, 71914, 129796, 143828, 259592, 287656, 519184, 575312, 1330409, 2660818, 5321636, 10643272, 21286544]

約数ペア:

[(1, 21286544), (2, 10643272), (4, 5321636), (8, 2660818), (16, 1330409), (37, 575312), (41, 519184), (74, 287656), (82, 259592), (148, 143828), (164, 129796), (296, 71914), (328, 64898), (592, 35957), (656, 32449), (877, 24272), (1517, 14032), (1754, 12136), (3034, 7016), (3508, 6068)]