19521733

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 25915392

約数和(自身を除く): 6393659

約数列:

[1, 7, 11, 23, 73, 77, 151, 161, 253, 511, 803, 1057, 1661, 1679, 1771, 3473, 5621, 11023, 11627, 11753, 18469, 24311, 38203, 77161, 121253, 129283, 253529, 267421, 848771, 1774703, 2788819, 19521733]

約数ペア:

[(1, 19521733), (7, 2788819), (11, 1774703), (23, 848771), (73, 267421), (77, 253529), (151, 129283), (161, 121253), (253, 77161), (511, 38203), (803, 24311), (1057, 18469), (1661, 11753), (1679, 11627), (1771, 11023), (3473, 5621)]