21000886203

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{25633}}^1$

素因数の和:25756

約数の個数: 48

約数和(自身を含む): 32129450528

約数和(自身を除く): 11128564325

約数列:

[1, 3, 11, 33, 37, 61, 111, 121, 183, 363, 407, 671, 1221, 2013, 2257, 4477, 6771, 7381, 13431, 22143, 24827, 25633, 74481, 76899, 273097, 281963, 819291, 845889, 948421, 1563613, 2845263, 3101593, 4690839, 9304779, 10432631, 17199743, 31297893, 51599229, 57853681, 114758941, 173561043, 189197173, 344276823, 567591519, 636390491, 1909171473, 7000295401, 21000886203]

約数ペア:

[(1, 21000886203), (3, 7000295401), (11, 1909171473), (33, 636390491), (37, 567591519), (61, 344276823), (111, 189197173), (121, 173561043), (183, 114758941), (363, 57853681), (407, 51599229), (671, 31297893), (1221, 17199743), (2013, 10432631), (2257, 9304779), (4477, 4690839), (6771, 3101593), (7381, 2845263), (13431, 1563613), (22143, 948421), (24827, 845889), (25633, 819291), (74481, 281963), (76899, 273097)]