12920397

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 20643840

約数和(自身を除く): 7723443

約数列:

[1, 3, 7, 21, 31, 89, 93, 217, 223, 267, 623, 651, 669, 1561, 1869, 2759, 4683, 6913, 8277, 19313, 19847, 20739, 48391, 57939, 59541, 138929, 145173, 416787, 615257, 1845771, 4306799, 12920397]

約数ペア:

[(1, 12920397), (3, 4306799), (7, 1845771), (21, 615257), (31, 416787), (89, 145173), (93, 138929), (217, 59541), (223, 57939), (267, 48391), (623, 20739), (651, 19847), (669, 19313), (1561, 8277), (1869, 6913), (2759, 4683)]