21278228

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{3461}}^1$

素因数の和:3547

約数の個数: 24

約数和(自身を含む): 39259080

約数和(自身を除く): 17980852

約数列:

[1, 2, 4, 29, 53, 58, 106, 116, 212, 1537, 3074, 3461, 6148, 6922, 13844, 100369, 183433, 200738, 366866, 401476, 733732, 5319557, 10639114, 21278228]

約数ペア:

[(1, 21278228), (2, 10639114), (4, 5319557), (29, 733732), (53, 401476), (58, 366866), (106, 200738), (116, 183433), (212, 100369), (1537, 13844), (3074, 6922), (3461, 6148)]