21230288

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1861}}^1$

素因数の和:1923

約数の個数: 40

約数和(自身を含む): 44330496

約数和(自身を除く): 23100208

約数列:

[1, 2, 4, 8, 16, 23, 31, 46, 62, 92, 124, 184, 248, 368, 496, 713, 1426, 1861, 2852, 3722, 5704, 7444, 11408, 14888, 29776, 42803, 57691, 85606, 115382, 171212, 230764, 342424, 461528, 684848, 923056, 1326893, 2653786, 5307572, 10615144, 21230288]

約数ペア:

[(1, 21230288), (2, 10615144), (4, 5307572), (8, 2653786), (16, 1326893), (23, 923056), (31, 684848), (46, 461528), (62, 342424), (92, 230764), (124, 171212), (184, 115382), (248, 85606), (368, 57691), (496, 42803), (713, 29776), (1426, 14888), (1861, 11408), (2852, 7444), (3722, 5704)]