21530256

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^3\times {\mathrm{337}}^1$

素因数の和:381

約数の個数: 80

約数和(自身を含む): 61359168

約数和(自身を除く): 39828912

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 121, 132, 176, 242, 264, 337, 363, 484, 528, 674, 726, 968, 1011, 1331, 1348, 1452, 1936, 2022, 2662, 2696, 2904, 3707, 3993, 4044, 5324, 5392, 5808, 7414, 7986, 8088, 10648, 11121, 14828, 15972, 16176, 21296, 22242, 29656, 31944, 40777, 44484, 59312, 63888, 81554, 88968, 122331, 163108, 177936, 244662, 326216, 448547, 489324, 652432, 897094, 978648, 1345641, 1794188, 1957296, 2691282, 3588376, 5382564, 7176752, 10765128, 21530256]

約数ペア:

[(1, 21530256), (2, 10765128), (3, 7176752), (4, 5382564), (6, 3588376), (8, 2691282), (11, 1957296), (12, 1794188), (16, 1345641), (22, 978648), (24, 897094), (33, 652432), (44, 489324), (48, 448547), (66, 326216), (88, 244662), (121, 177936), (132, 163108), (176, 122331), (242, 88968), (264, 81554), (337, 63888), (363, 59312), (484, 44484), (528, 40777), (674, 31944), (726, 29656), (968, 22242), (1011, 21296), (1331, 16176), (1348, 15972), (1452, 14828), (1936, 11121), (2022, 10648), (2662, 8088), (2696, 7986), (2904, 7414), (3707, 5808), (3993, 5392), (4044, 5324)]