21861610

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{751}}^1$

素因数の和:870

約数の個数: 32

約数和(自身を含む): 40932864

約数和(自身を除く): 19071254

約数列:

[1, 2, 5, 10, 41, 71, 82, 142, 205, 355, 410, 710, 751, 1502, 2911, 3755, 5822, 7510, 14555, 29110, 30791, 53321, 61582, 106642, 153955, 266605, 307910, 533210, 2186161, 4372322, 10930805, 21861610]

約数ペア:

[(1, 21861610), (2, 10930805), (5, 4372322), (10, 2186161), (41, 533210), (71, 307910), (82, 266605), (142, 153955), (205, 106642), (355, 61582), (410, 53321), (710, 30791), (751, 29110), (1502, 14555), (2911, 7510), (3755, 5822)]