21373936

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70309}}^1$

素因数の和:70336

約数の個数: 20

約数和(自身を含む): 43592200

約数和(自身を除く): 22218264

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70309, 140618, 281236, 562472, 1124944, 1335871, 2671742, 5343484, 10686968, 21373936]

約数ペア:

[(1, 21373936), (2, 10686968), (4, 5343484), (8, 2671742), (16, 1335871), (19, 1124944), (38, 562472), (76, 281236), (152, 140618), (304, 70309)]