19664996

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4787}}^1$

素因数の和:4883

約数の個数: 24

約数和(自身を含む): 37537920

約数和(自身を除く): 17872924

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 2054, 4108, 4787, 9574, 19148, 62231, 124462, 248924, 378173, 756346, 1512692, 4916249, 9832498, 19664996]

約数ペア:

[(1, 19664996), (2, 9832498), (4, 4916249), (13, 1512692), (26, 756346), (52, 378173), (79, 248924), (158, 124462), (316, 62231), (1027, 19148), (2054, 9574), (4108, 4787)]