211221627

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{379}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 303367680

約数和(自身を除く): 92146053

約数列:

[1, 3, 23, 41, 69, 123, 197, 379, 591, 943, 1137, 2829, 4531, 8077, 8717, 13593, 15539, 24231, 26151, 46617, 74663, 185771, 223989, 357397, 557313, 1072191, 1717249, 3061183, 5151747, 9183549, 70407209, 211221627]

約数ペア:

[(1, 211221627), (3, 70407209), (23, 9183549), (41, 5151747), (69, 3061183), (123, 1717249), (197, 1072191), (379, 557313), (591, 357397), (943, 223989), (1137, 185771), (2829, 74663), (4531, 46617), (8077, 26151), (8717, 24231), (13593, 15539)]