21909671105

素因数分解:

$5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{44249}}^1$

素因数の和:44358

約数の個数: 48

約数和(自身を含む): 31961952000

約数和(自身を除く): 10052280895

約数列:

[1, 5, 7, 35, 43, 47, 49, 215, 235, 245, 301, 329, 1505, 1645, 2021, 2107, 2303, 10105, 10535, 11515, 14147, 44249, 70735, 99029, 221245, 309743, 495145, 1548715, 1902707, 2079703, 2168201, 9513535, 10398515, 10841005, 13318949, 14557921, 66594745, 72789605, 89427229, 93232643, 101905447, 447136145, 466163215, 509527235, 625990603, 3129953015, 4381934221, 21909671105]

約数ペア:

[(1, 21909671105), (5, 4381934221), (7, 3129953015), (35, 625990603), (43, 509527235), (47, 466163215), (49, 447136145), (215, 101905447), (235, 93232643), (245, 89427229), (301, 72789605), (329, 66594745), (1505, 14557921), (1645, 13318949), (2021, 10841005), (2107, 10398515), (2303, 9513535), (10105, 2168201), (10535, 2079703), (11515, 1902707), (14147, 1548715), (44249, 495145), (70735, 309743), (99029, 221245)]