20455533

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{743}}^1$

素因数の和:798

約数の個数: 48

約数和(自身を含む): 37140480

約数和(自身を除く): 16684947

約数列:

[1, 3, 7, 9, 19, 21, 23, 57, 63, 69, 133, 161, 171, 207, 399, 437, 483, 743, 1197, 1311, 1449, 2229, 3059, 3933, 5201, 6687, 9177, 14117, 15603, 17089, 27531, 42351, 46809, 51267, 98819, 119623, 127053, 153801, 296457, 324691, 358869, 889371, 974073, 1076607, 2272837, 2922219, 6818511, 20455533]

約数ペア:

[(1, 20455533), (3, 6818511), (7, 2922219), (9, 2272837), (19, 1076607), (21, 974073), (23, 889371), (57, 358869), (63, 324691), (69, 296457), (133, 153801), (161, 127053), (171, 119623), (207, 98819), (399, 51267), (437, 46809), (483, 42351), (743, 27531), (1197, 17089), (1311, 15603), (1449, 14117), (2229, 9177), (3059, 6687), (3933, 5201)]