19684742

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 39896064

約数和(自身を除く): 20211322

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 73, 77, 103, 119, 146, 154, 187, 206, 238, 374, 511, 721, 803, 1022, 1133, 1241, 1309, 1442, 1606, 1751, 2266, 2482, 2618, 3502, 5621, 7519, 7931, 8687, 11242, 12257, 13651, 15038, 15862, 17374, 19261, 24514, 27302, 38522, 52633, 82709, 95557, 105266, 127823, 134827, 165418, 191114, 255646, 269654, 578963, 894761, 1157926, 1406053, 1789522, 2812106, 9842371, 19684742]

約数ペア:

[(1, 19684742), (2, 9842371), (7, 2812106), (11, 1789522), (14, 1406053), (17, 1157926), (22, 894761), (34, 578963), (73, 269654), (77, 255646), (103, 191114), (119, 165418), (146, 134827), (154, 127823), (187, 105266), (206, 95557), (238, 82709), (374, 52633), (511, 38522), (721, 27302), (803, 24514), (1022, 19261), (1133, 17374), (1241, 15862), (1309, 15038), (1442, 13651), (1606, 12257), (1751, 11242), (2266, 8687), (2482, 7931), (2618, 7519), (3502, 5621)]