21678132

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{613}}^1$

素因数の和:1048

約数の個数: 48

約数和(自身を含む): 58040192

約数和(自身を除く): 36362060

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 421, 613, 842, 1226, 1263, 1684, 1839, 2452, 2526, 2947, 3678, 4291, 5052, 5894, 7356, 8582, 8841, 11788, 12873, 17164, 17682, 25746, 35364, 51492, 258073, 516146, 774219, 1032292, 1548438, 1806511, 3096876, 3613022, 5419533, 7226044, 10839066, 21678132]

約数ペア:

[(1, 21678132), (2, 10839066), (3, 7226044), (4, 5419533), (6, 3613022), (7, 3096876), (12, 1806511), (14, 1548438), (21, 1032292), (28, 774219), (42, 516146), (84, 258073), (421, 51492), (613, 35364), (842, 25746), (1226, 17682), (1263, 17164), (1684, 12873), (1839, 11788), (2452, 8841), (2526, 8582), (2947, 7356), (3678, 5894), (4291, 5052)]