21658590

素因数分解:

$2^1\times 3^6\times 5^1\times {\mathrm{2971}}^1$

素因数の和:2996

約数の個数: 56

約数和(自身を含む): 58471128

約数和(自身を除く): 36812538

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 729, 810, 1215, 1458, 2430, 2971, 3645, 5942, 7290, 8913, 14855, 17826, 26739, 29710, 44565, 53478, 80217, 89130, 133695, 160434, 240651, 267390, 401085, 481302, 721953, 802170, 1203255, 1443906, 2165859, 2406510, 3609765, 4331718, 7219530, 10829295, 21658590]

約数ペア:

[(1, 21658590), (2, 10829295), (3, 7219530), (5, 4331718), (6, 3609765), (9, 2406510), (10, 2165859), (15, 1443906), (18, 1203255), (27, 802170), (30, 721953), (45, 481302), (54, 401085), (81, 267390), (90, 240651), (135, 160434), (162, 133695), (243, 89130), (270, 80217), (405, 53478), (486, 44565), (729, 29710), (810, 26739), (1215, 17826), (1458, 14855), (2430, 8913), (2971, 7290), (3645, 5942)]