21050752

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 44614800

約数和(自身を除く): 23564048

約数列:

[1, 2, 4, 8, 16, 29, 32, 53, 58, 64, 106, 107, 116, 128, 212, 214, 232, 424, 428, 464, 848, 856, 928, 1537, 1696, 1712, 1856, 3074, 3103, 3392, 3424, 3712, 5671, 6148, 6206, 6784, 6848, 11342, 12296, 12412, 13696, 22684, 24592, 24824, 45368, 49184, 49648, 90736, 98368, 99296, 164459, 181472, 196736, 198592, 328918, 362944, 397184, 657836, 725888, 1315672, 2631344, 5262688, 10525376, 21050752]

約数ペア:

[(1, 21050752), (2, 10525376), (4, 5262688), (8, 2631344), (16, 1315672), (29, 725888), (32, 657836), (53, 397184), (58, 362944), (64, 328918), (106, 198592), (107, 196736), (116, 181472), (128, 164459), (212, 99296), (214, 98368), (232, 90736), (424, 49648), (428, 49184), (464, 45368), (848, 24824), (856, 24592), (928, 22684), (1537, 13696), (1696, 12412), (1712, 12296), (1856, 11342), (3074, 6848), (3103, 6784), (3392, 6206), (3424, 6148), (3712, 5671)]