20438224

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67231}}^1$

素因数の和:67258

約数の個数: 20

約数和(自身を含む): 41683840

約数和(自身を除く): 21245616

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 67231, 134462, 268924, 537848, 1075696, 1277389, 2554778, 5109556, 10219112, 20438224]

約数ペア:

[(1, 20438224), (2, 10219112), (4, 5109556), (8, 2554778), (16, 1277389), (19, 1075696), (38, 537848), (76, 268924), (152, 134462), (304, 67231)]