208537868

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{21841}}^1$

素因数の和:21894

約数の個数: 48

約数和(自身を含む): 469690368

約数和(自身を除く): 261152500

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 124, 154, 217, 308, 341, 434, 682, 868, 1364, 2387, 4774, 9548, 21841, 43682, 87364, 152887, 240251, 305774, 480502, 611548, 677071, 961004, 1354142, 1681757, 2708284, 3363514, 4739497, 6727028, 7447781, 9478994, 14895562, 18957988, 29791124, 52134467, 104268934, 208537868]

約数ペア:

[(1, 208537868), (2, 104268934), (4, 52134467), (7, 29791124), (11, 18957988), (14, 14895562), (22, 9478994), (28, 7447781), (31, 6727028), (44, 4739497), (62, 3363514), (77, 2708284), (124, 1681757), (154, 1354142), (217, 961004), (308, 677071), (341, 611548), (434, 480502), (682, 305774), (868, 240251), (1364, 152887), (2387, 87364), (4774, 43682), (9548, 21841)]