21690204

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{293}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 52684800

約数和(自身を除く): 30994596

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 186, 199, 293, 372, 398, 586, 597, 796, 879, 1172, 1194, 1758, 2388, 3516, 6169, 9083, 12338, 18166, 18507, 24676, 27249, 36332, 37014, 54498, 58307, 74028, 108996, 116614, 174921, 233228, 349842, 699684, 1807517, 3615034, 5422551, 7230068, 10845102, 21690204]

約数ペア:

[(1, 21690204), (2, 10845102), (3, 7230068), (4, 5422551), (6, 3615034), (12, 1807517), (31, 699684), (62, 349842), (93, 233228), (124, 174921), (186, 116614), (199, 108996), (293, 74028), (372, 58307), (398, 54498), (586, 37014), (597, 36332), (796, 27249), (879, 24676), (1172, 18507), (1194, 18166), (1758, 12338), (2388, 9083), (3516, 6169)]