21637828

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{1811}}^1$

素因数の和:1947

約数の個数: 24

約数和(自身を含む): 39574080

約数和(自身を除く): 17936252

約数列:

[1, 2, 4, 29, 58, 103, 116, 206, 412, 1811, 2987, 3622, 5974, 7244, 11948, 52519, 105038, 186533, 210076, 373066, 746132, 5409457, 10818914, 21637828]

約数ペア:

[(1, 21637828), (2, 10818914), (4, 5409457), (29, 746132), (58, 373066), (103, 210076), (116, 186533), (206, 105038), (412, 52519), (1811, 11948), (2987, 7244), (3622, 5974)]