21654390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{11833}}^1$

素因数の和:11904

約数の個数: 32

約数和(自身を含む): 52826976

約数和(自身を除く): 31172586

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 122, 183, 305, 366, 610, 915, 1830, 11833, 23666, 35499, 59165, 70998, 118330, 177495, 354990, 721813, 1443626, 2165439, 3609065, 4330878, 7218130, 10827195, 21654390]

約数ペア:

[(1, 21654390), (2, 10827195), (3, 7218130), (5, 4330878), (6, 3609065), (10, 2165439), (15, 1443626), (30, 721813), (61, 354990), (122, 177495), (183, 118330), (305, 70998), (366, 59165), (610, 35499), (915, 23666), (1830, 11833)]