21195260051

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{379}}^1\times {\mathrm{8867}}^1$

素因数の和:9323

約数の個数: 32

約数和(自身を含む): 26203875840

約数和(自身を除く): 5008615789

約数列:

[1, 7, 17, 53, 119, 371, 379, 901, 2653, 6307, 6443, 8867, 20087, 45101, 62069, 140609, 150739, 341479, 469951, 1055173, 2390353, 3289657, 3360593, 7989167, 23524151, 55924169, 57130081, 178111429, 399910567, 1246780003, 3027894293, 21195260051]

約数ペア:

[(1, 21195260051), (7, 3027894293), (17, 1246780003), (53, 399910567), (119, 178111429), (371, 57130081), (379, 55924169), (901, 23524151), (2653, 7989167), (6307, 3360593), (6443, 3289657), (8867, 2390353), (20087, 1055173), (45101, 469951), (62069, 341479), (140609, 150739)]