19802218

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:346

約数の個数: 32

約数和(自身を含む): 33062400

約数和(自身を除く): 13260182

約数列:

[1, 2, 19, 23, 38, 46, 139, 163, 278, 326, 437, 874, 2641, 3097, 3197, 3749, 5282, 6194, 6394, 7498, 22657, 45314, 60743, 71231, 121486, 142462, 430483, 521111, 860966, 1042222, 9901109, 19802218]

約数ペア:

[(1, 19802218), (2, 9901109), (19, 1042222), (23, 860966), (38, 521111), (46, 430483), (139, 142462), (163, 121486), (278, 71231), (326, 60743), (437, 45314), (874, 22657), (2641, 7498), (3097, 6394), (3197, 6194), (3749, 5282)]