21537190

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:424

約数の個数: 32

約数和(自身を含む): 39757536

約数和(自身を除く): 18220346

約数列:

[1, 2, 5, 10, 73, 146, 163, 181, 326, 362, 365, 730, 815, 905, 1630, 1810, 11899, 13213, 23798, 26426, 29503, 59006, 59495, 66065, 118990, 132130, 147515, 295030, 2153719, 4307438, 10768595, 21537190]

約数ペア:

[(1, 21537190), (2, 10768595), (5, 4307438), (10, 2153719), (73, 295030), (146, 147515), (163, 132130), (181, 118990), (326, 66065), (362, 59495), (365, 59006), (730, 29503), (815, 26426), (905, 23798), (1630, 13213), (1810, 11899)]