21023101

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 26248320

約数和(自身を除く): 5225219

約数列:

[1, 11, 17, 19, 61, 97, 187, 209, 323, 671, 1037, 1067, 1159, 1649, 1843, 3553, 5917, 11407, 12749, 18139, 19703, 20273, 31331, 65087, 100589, 112423, 216733, 344641, 1106479, 1236653, 1911191, 21023101]

約数ペア:

[(1, 21023101), (11, 1911191), (17, 1236653), (19, 1106479), (61, 344641), (97, 216733), (187, 112423), (209, 100589), (323, 65087), (671, 31331), (1037, 20273), (1067, 19703), (1159, 18139), (1649, 12749), (1843, 11407), (3553, 5917)]