21183090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16421}}^1$

素因数の和:16474

約数の個数: 32

約数和(自身を含む): 52024896

約数和(自身を除く): 30841806

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 16421, 32842, 49263, 82105, 98526, 164210, 246315, 492630, 706103, 1412206, 2118309, 3530515, 4236618, 7061030, 10591545, 21183090]

約数ペア:

[(1, 21183090), (2, 10591545), (3, 7061030), (5, 4236618), (6, 3530515), (10, 2118309), (15, 1412206), (30, 706103), (43, 492630), (86, 246315), (129, 164210), (215, 98526), (258, 82105), (430, 49263), (645, 32842), (1290, 16421)]