2722491

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:121

約数の個数: 40

約数和(自身を含む): 4501200

約数和(自身を除く): 1778709

約数列:

[1, 3, 9, 19, 27, 29, 57, 61, 81, 87, 171, 183, 261, 513, 549, 551, 783, 1159, 1539, 1647, 1653, 1769, 2349, 3477, 4941, 4959, 5307, 10431, 14877, 15921, 31293, 33611, 44631, 47763, 93879, 100833, 143289, 302499, 907497, 2722491]

約数ペア:

[(1, 2722491), (3, 907497), (9, 302499), (19, 143289), (27, 100833), (29, 93879), (57, 47763), (61, 44631), (81, 33611), (87, 31293), (171, 15921), (183, 14877), (261, 10431), (513, 5307), (549, 4959), (551, 4941), (783, 3477), (1159, 2349), (1539, 1769), (1647, 1653)]