18974901

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{571}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 29652480

約数和(自身を除く): 10677579

約数列:

[1, 3, 11, 19, 33, 53, 57, 159, 209, 571, 583, 627, 1007, 1713, 1749, 3021, 6281, 10849, 11077, 18843, 30263, 32547, 33231, 90789, 119339, 332893, 358017, 574997, 998679, 1724991, 6324967, 18974901]

約数ペア:

[(1, 18974901), (3, 6324967), (11, 1724991), (19, 998679), (33, 574997), (53, 358017), (57, 332893), (159, 119339), (209, 90789), (571, 33231), (583, 32547), (627, 30263), (1007, 18843), (1713, 11077), (1749, 10849), (3021, 6281)]