19657965

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 32555520

約数和(自身を除く): 12897555

約数列:

[1, 3, 5, 15, 53, 79, 159, 237, 265, 313, 395, 795, 939, 1185, 1565, 4187, 4695, 12561, 16589, 20935, 24727, 49767, 62805, 74181, 82945, 123635, 248835, 370905, 1310531, 3931593, 6552655, 19657965]

約数ペア:

[(1, 19657965), (3, 6552655), (5, 3931593), (15, 1310531), (53, 370905), (79, 248835), (159, 123635), (237, 82945), (265, 74181), (313, 62805), (395, 49767), (795, 24727), (939, 20935), (1185, 16589), (1565, 12561), (4187, 4695)]