15990438

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:301

約数の個数: 64

約数和(自身を含む): 36771840

約数和(自身を除く): 20781402

約数列:

[1, 2, 3, 6, 17, 19, 34, 37, 38, 51, 57, 74, 102, 111, 114, 222, 223, 323, 446, 629, 646, 669, 703, 969, 1258, 1338, 1406, 1887, 1938, 2109, 3774, 3791, 4218, 4237, 7582, 8251, 8474, 11373, 11951, 12711, 16502, 22746, 23902, 24753, 25422, 35853, 49506, 71706, 72029, 140267, 144058, 156769, 216087, 280534, 313538, 420801, 432174, 470307, 841602, 940614, 2665073, 5330146, 7995219, 15990438]

約数ペア:

[(1, 15990438), (2, 7995219), (3, 5330146), (6, 2665073), (17, 940614), (19, 841602), (34, 470307), (37, 432174), (38, 420801), (51, 313538), (57, 280534), (74, 216087), (102, 156769), (111, 144058), (114, 140267), (222, 72029), (223, 71706), (323, 49506), (446, 35853), (629, 25422), (646, 24753), (669, 23902), (703, 22746), (969, 16502), (1258, 12711), (1338, 11951), (1406, 11373), (1887, 8474), (1938, 8251), (2109, 7582), (3774, 4237), (3791, 4218)]