21742574

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{11677}}^1$

素因数の和:11712

約数の個数: 24

約数和(自身を含む): 39938760

約数和(自身を除く): 18196186

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 931, 1862, 11677, 23354, 81739, 163478, 221863, 443726, 572173, 1144346, 1553041, 3106082, 10871287, 21742574]

約数ペア:

[(1, 21742574), (2, 10871287), (7, 3106082), (14, 1553041), (19, 1144346), (38, 572173), (49, 443726), (98, 221863), (133, 163478), (266, 81739), (931, 23354), (1862, 11677)]