19509998

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:264

約数の個数: 32

約数和(自身を含む): 31987200

約数和(自身を除く): 12477202

約数列:

[1, 2, 19, 38, 67, 79, 97, 134, 158, 194, 1273, 1501, 1843, 2546, 3002, 3686, 5293, 6499, 7663, 10586, 12998, 15326, 100567, 123481, 145597, 201134, 246962, 291194, 513421, 1026842, 9754999, 19509998]

約数ペア:

[(1, 19509998), (2, 9754999), (19, 1026842), (38, 513421), (67, 291194), (79, 246962), (97, 201134), (134, 145597), (158, 123481), (194, 100567), (1273, 15326), (1501, 12998), (1843, 10586), (2546, 7663), (3002, 6499), (3686, 5293)]