21465328

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{359}}^1$

素因数の和:505

約数の個数: 40

約数和(自身を含む): 43256160

約数和(自身を除く): 21790832

約数列:

[1, 2, 4, 8, 16, 37, 74, 101, 148, 202, 296, 359, 404, 592, 718, 808, 1436, 1616, 2872, 3737, 5744, 7474, 13283, 14948, 26566, 29896, 36259, 53132, 59792, 72518, 106264, 145036, 212528, 290072, 580144, 1341583, 2683166, 5366332, 10732664, 21465328]

約数ペア:

[(1, 21465328), (2, 10732664), (4, 5366332), (8, 2683166), (16, 1341583), (37, 580144), (74, 290072), (101, 212528), (148, 145036), (202, 106264), (296, 72518), (359, 59792), (404, 53132), (592, 36259), (718, 29896), (808, 26566), (1436, 14948), (1616, 13283), (2872, 7474), (3737, 5744)]