18873777

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 28885248

約数和(自身を除く): 10011471

約数列:

[1, 3, 13, 23, 39, 53, 69, 159, 299, 397, 689, 897, 1191, 1219, 2067, 3657, 5161, 9131, 15483, 15847, 21041, 27393, 47541, 63123, 118703, 273533, 356109, 483943, 820599, 1451829, 6291259, 18873777]

約数ペア:

[(1, 18873777), (3, 6291259), (13, 1451829), (23, 820599), (39, 483943), (53, 356109), (69, 273533), (159, 118703), (299, 63123), (397, 47541), (689, 27393), (897, 21041), (1191, 15847), (1219, 15483), (2067, 9131), (3657, 5161)]