21622251

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{19427}}^1$

素因数の和:19490

約数の個数: 16

約数和(自身を含む): 33571584

約数和(自身を除く): 11949333

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 19427, 58281, 135989, 407967, 1029631, 3088893, 7207417, 21622251]

約数ペア:

[(1, 21622251), (3, 7207417), (7, 3088893), (21, 1029631), (53, 407967), (159, 135989), (371, 58281), (1113, 19427)]