18211672

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{557}}^1$

素因数の和:691

約数の個数: 32

約数和(自身を含む): 35287920

約数和(自身を除く): 17076248

約数列:

[1, 2, 4, 8, 61, 67, 122, 134, 244, 268, 488, 536, 557, 1114, 2228, 4087, 4456, 8174, 16348, 32696, 33977, 37319, 67954, 74638, 135908, 149276, 271816, 298552, 2276459, 4552918, 9105836, 18211672]

約数ペア:

[(1, 18211672), (2, 9105836), (4, 4552918), (8, 2276459), (61, 298552), (67, 271816), (122, 149276), (134, 135908), (244, 74638), (268, 67954), (488, 37319), (536, 33977), (557, 32696), (1114, 16348), (2228, 8174), (4087, 4456)]