20953317

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1487}}^1$

素因数の和:1569

約数の個数: 32

約数和(自身を含む): 35426304

約数和(自身を除く): 14472987

約数列:

[1, 3, 7, 11, 21, 33, 61, 77, 183, 231, 427, 671, 1281, 1487, 2013, 4461, 4697, 10409, 14091, 16357, 31227, 49071, 90707, 114499, 272121, 343497, 634949, 997777, 1904847, 2993331, 6984439, 20953317]

約数ペア:

[(1, 20953317), (3, 6984439), (7, 2993331), (11, 1904847), (21, 997777), (33, 634949), (61, 343497), (77, 272121), (183, 114499), (231, 90707), (427, 49071), (671, 31227), (1281, 16357), (1487, 14091), (2013, 10409), (4461, 4697)]