21398796

素因数分解:

$2^2\times 3^3\times {\mathrm{347}}^1\times {\mathrm{571}}^1$

素因数の和:931

約数の個数: 48

約数和(自身を含む): 55735680

約数和(自身を除く): 34336884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 347, 571, 694, 1041, 1142, 1388, 1713, 2082, 2284, 3123, 3426, 4164, 5139, 6246, 6852, 9369, 10278, 12492, 15417, 18738, 20556, 30834, 37476, 61668, 198137, 396274, 594411, 792548, 1188822, 1783233, 2377644, 3566466, 5349699, 7132932, 10699398, 21398796]

約数ペア:

[(1, 21398796), (2, 10699398), (3, 7132932), (4, 5349699), (6, 3566466), (9, 2377644), (12, 1783233), (18, 1188822), (27, 792548), (36, 594411), (54, 396274), (108, 198137), (347, 61668), (571, 37476), (694, 30834), (1041, 20556), (1142, 18738), (1388, 15417), (1713, 12492), (2082, 10278), (2284, 9369), (3123, 6852), (3426, 6246), (4164, 5139)]