21879180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1307}}^1$

素因数の和:1356

約数の個数: 96

約数和(自身を含む): 70318080

約数和(自身を除く): 48438900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 90, 93, 108, 124, 135, 155, 180, 186, 270, 279, 310, 372, 465, 540, 558, 620, 837, 930, 1116, 1307, 1395, 1674, 1860, 2614, 2790, 3348, 3921, 4185, 5228, 5580, 6535, 7842, 8370, 11763, 13070, 15684, 16740, 19605, 23526, 26140, 35289, 39210, 40517, 47052, 58815, 70578, 78420, 81034, 117630, 121551, 141156, 162068, 176445, 202585, 235260, 243102, 352890, 364653, 405170, 486204, 607755, 705780, 729306, 810340, 1093959, 1215510, 1458612, 1823265, 2187918, 2431020, 3646530, 4375836, 5469795, 7293060, 10939590, 21879180]

約数ペア:

[(1, 21879180), (2, 10939590), (3, 7293060), (4, 5469795), (5, 4375836), (6, 3646530), (9, 2431020), (10, 2187918), (12, 1823265), (15, 1458612), (18, 1215510), (20, 1093959), (27, 810340), (30, 729306), (31, 705780), (36, 607755), (45, 486204), (54, 405170), (60, 364653), (62, 352890), (90, 243102), (93, 235260), (108, 202585), (124, 176445), (135, 162068), (155, 141156), (180, 121551), (186, 117630), (270, 81034), (279, 78420), (310, 70578), (372, 58815), (465, 47052), (540, 40517), (558, 39210), (620, 35289), (837, 26140), (930, 23526), (1116, 19605), (1307, 16740), (1395, 15684), (1674, 13070), (1860, 11763), (2614, 8370), (2790, 7842), (3348, 6535), (3921, 5580), (4185, 5228)]