21326538

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{631}}^1$

素因数の和:810

約数の個数: 32

約数和(自身を含む): 44047872

約数和(自身を除く): 22721334

約数列:

[1, 2, 3, 6, 43, 86, 129, 131, 258, 262, 393, 631, 786, 1262, 1893, 3786, 5633, 11266, 16899, 27133, 33798, 54266, 81399, 82661, 162798, 165322, 247983, 495966, 3554423, 7108846, 10663269, 21326538]

約数ペア:

[(1, 21326538), (2, 10663269), (3, 7108846), (6, 3554423), (43, 495966), (86, 247983), (129, 165322), (131, 162798), (258, 82661), (262, 81399), (393, 54266), (631, 33798), (786, 27133), (1262, 16899), (1893, 11266), (3786, 5633)]