31703931

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 57442320

約数和(自身を除く): 25738389

約数列:

[1, 3, 7, 9, 21, 29, 37, 49, 63, 67, 87, 111, 147, 201, 203, 259, 261, 333, 441, 469, 603, 609, 777, 1073, 1407, 1421, 1813, 1827, 1943, 2331, 2479, 3219, 3283, 4221, 4263, 5439, 5829, 7437, 7511, 9657, 9849, 12789, 13601, 16317, 17353, 17487, 22311, 22533, 29547, 40803, 52059, 52577, 67599, 71891, 95207, 121471, 122409, 156177, 157731, 215673, 285621, 364413, 473193, 503237, 647019, 856863, 1093239, 1509711, 3522659, 4529133, 10567977, 31703931]

約数ペア:

[(1, 31703931), (3, 10567977), (7, 4529133), (9, 3522659), (21, 1509711), (29, 1093239), (37, 856863), (49, 647019), (63, 503237), (67, 473193), (87, 364413), (111, 285621), (147, 215673), (201, 157731), (203, 156177), (259, 122409), (261, 121471), (333, 95207), (441, 71891), (469, 67599), (603, 52577), (609, 52059), (777, 40803), (1073, 29547), (1407, 22533), (1421, 22311), (1813, 17487), (1827, 17353), (1943, 16317), (2331, 13601), (2479, 12789), (3219, 9849), (3283, 9657), (4221, 7511), (4263, 7437), (5439, 5829)]