21980304

素因数分解:

$2^4\times 3^2\times {\mathrm{152641}}^1$

素因数の和:152655

約数の個数: 30

約数和(自身を含む): 61514726

約数和(自身を除く): 39534422

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 152641, 305282, 457923, 610564, 915846, 1221128, 1373769, 1831692, 2442256, 2747538, 3663384, 5495076, 7326768, 10990152, 21980304]

約数ペア:

[(1, 21980304), (2, 10990152), (3, 7326768), (4, 5495076), (6, 3663384), (8, 2747538), (9, 2442256), (12, 1831692), (16, 1373769), (18, 1221128), (24, 915846), (36, 610564), (48, 457923), (72, 305282), (144, 152641)]