21885955

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{467}}^1$

素因数の和:595

約数の個数: 32

約数和(自身を含む): 32707584

約数和(自身を除く): 10821629

約数列:

[1, 5, 7, 13, 35, 65, 91, 103, 455, 467, 515, 721, 1339, 2335, 3269, 3605, 6071, 6695, 9373, 16345, 30355, 42497, 46865, 48101, 212485, 240505, 336707, 625313, 1683535, 3126565, 4377191, 21885955]

約数ペア:

[(1, 21885955), (5, 4377191), (7, 3126565), (13, 1683535), (35, 625313), (65, 336707), (91, 240505), (103, 212485), (455, 48101), (467, 46865), (515, 42497), (721, 30355), (1339, 16345), (2335, 9373), (3269, 6695), (3605, 6071)]