19993666

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1091}}^1$

素因数の和:1135

約数の個数: 48

約数和(自身を含む): 40334112

約数和(自身を除く): 20340446

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 49, 77, 98, 119, 154, 187, 238, 374, 539, 833, 1078, 1091, 1309, 1666, 2182, 2618, 7637, 9163, 12001, 15274, 18326, 18547, 24002, 37094, 53459, 84007, 106918, 129829, 168014, 204017, 259658, 408034, 588049, 908803, 1176098, 1428119, 1817606, 2856238, 9996833, 19993666]

約数ペア:

[(1, 19993666), (2, 9996833), (7, 2856238), (11, 1817606), (14, 1428119), (17, 1176098), (22, 908803), (34, 588049), (49, 408034), (77, 259658), (98, 204017), (119, 168014), (154, 129829), (187, 106918), (238, 84007), (374, 53459), (539, 37094), (833, 24002), (1078, 18547), (1091, 18326), (1309, 15274), (1666, 12001), (2182, 9163), (2618, 7637)]