21857580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2381}}^1$

素因数の和:2416

約数の個数: 96

約数和(自身を含む): 72031680

約数和(自身を除く): 50174100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 85, 90, 102, 108, 135, 153, 170, 180, 204, 255, 270, 306, 340, 459, 510, 540, 612, 765, 918, 1020, 1530, 1836, 2295, 2381, 3060, 4590, 4762, 7143, 9180, 9524, 11905, 14286, 21429, 23810, 28572, 35715, 40477, 42858, 47620, 64287, 71430, 80954, 85716, 107145, 121431, 128574, 142860, 161908, 202385, 214290, 242862, 257148, 321435, 364293, 404770, 428580, 485724, 607155, 642870, 728586, 809540, 1092879, 1214310, 1285740, 1457172, 1821465, 2185758, 2428620, 3642930, 4371516, 5464395, 7285860, 10928790, 21857580]

約数ペア:

[(1, 21857580), (2, 10928790), (3, 7285860), (4, 5464395), (5, 4371516), (6, 3642930), (9, 2428620), (10, 2185758), (12, 1821465), (15, 1457172), (17, 1285740), (18, 1214310), (20, 1092879), (27, 809540), (30, 728586), (34, 642870), (36, 607155), (45, 485724), (51, 428580), (54, 404770), (60, 364293), (68, 321435), (85, 257148), (90, 242862), (102, 214290), (108, 202385), (135, 161908), (153, 142860), (170, 128574), (180, 121431), (204, 107145), (255, 85716), (270, 80954), (306, 71430), (340, 64287), (459, 47620), (510, 42858), (540, 40477), (612, 35715), (765, 28572), (918, 23810), (1020, 21429), (1530, 14286), (1836, 11905), (2295, 9524), (2381, 9180), (3060, 7143), (4590, 4762)]