19697205

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 37140480

約数和(自身を除く): 17443275

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 61, 95, 103, 165, 183, 209, 285, 305, 309, 515, 627, 671, 915, 1045, 1133, 1159, 1545, 1957, 2013, 3135, 3355, 3399, 3477, 5665, 5795, 5871, 6283, 9785, 10065, 12749, 16995, 17385, 18849, 21527, 29355, 31415, 38247, 63745, 64581, 69113, 94245, 107635, 119377, 191235, 207339, 322905, 345565, 358131, 596885, 1036695, 1313147, 1790655, 3939441, 6565735, 19697205]

約数ペア:

[(1, 19697205), (3, 6565735), (5, 3939441), (11, 1790655), (15, 1313147), (19, 1036695), (33, 596885), (55, 358131), (57, 345565), (61, 322905), (95, 207339), (103, 191235), (165, 119377), (183, 107635), (209, 94245), (285, 69113), (305, 64581), (309, 63745), (515, 38247), (627, 31415), (671, 29355), (915, 21527), (1045, 18849), (1133, 17385), (1159, 16995), (1545, 12749), (1957, 10065), (2013, 9785), (3135, 6283), (3355, 5871), (3399, 5795), (3477, 5665)]