21199320

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{727}}^1$

素因数の和:756

約数の個数: 112

約数和(自身を含む): 71613360

約数和(自身を除く): 50414040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 727, 729, 810, 972, 1080, 1215, 1454, 1458, 1620, 1944, 2181, 2430, 2908, 2916, 3240, 3635, 3645, 4362, 4860, 5816, 5832, 6543, 7270, 7290, 8724, 9720, 10905, 13086, 14540, 14580, 17448, 19629, 21810, 26172, 29080, 29160, 32715, 39258, 43620, 52344, 58887, 65430, 78516, 87240, 98145, 117774, 130860, 157032, 176661, 196290, 235548, 261720, 294435, 353322, 392580, 471096, 529983, 588870, 706644, 785160, 883305, 1059966, 1177740, 1413288, 1766610, 2119932, 2355480, 2649915, 3533220, 4239864, 5299830, 7066440, 10599660, 21199320]

約数ペア:

[(1, 21199320), (2, 10599660), (3, 7066440), (4, 5299830), (5, 4239864), (6, 3533220), (8, 2649915), (9, 2355480), (10, 2119932), (12, 1766610), (15, 1413288), (18, 1177740), (20, 1059966), (24, 883305), (27, 785160), (30, 706644), (36, 588870), (40, 529983), (45, 471096), (54, 392580), (60, 353322), (72, 294435), (81, 261720), (90, 235548), (108, 196290), (120, 176661), (135, 157032), (162, 130860), (180, 117774), (216, 98145), (243, 87240), (270, 78516), (324, 65430), (360, 58887), (405, 52344), (486, 43620), (540, 39258), (648, 32715), (727, 29160), (729, 29080), (810, 26172), (972, 21810), (1080, 19629), (1215, 17448), (1454, 14580), (1458, 14540), (1620, 13086), (1944, 10905), (2181, 9720), (2430, 8724), (2908, 7290), (2916, 7270), (3240, 6543), (3635, 5832), (3645, 5816), (4362, 4860)]