128522709

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 219248640

約数和(自身を除く): 90725931

約数列:

[1, 3, 7, 9, 21, 59, 63, 71, 177, 213, 413, 487, 497, 531, 639, 1239, 1461, 1491, 3409, 3717, 4189, 4383, 4473, 10227, 12567, 28733, 29323, 30681, 34577, 37701, 86199, 87969, 103731, 201131, 242039, 258597, 263907, 311193, 603393, 726117, 1810179, 2040043, 2178351, 6120129, 14280301, 18360387, 42840903, 128522709]

約数ペア:

[(1, 128522709), (3, 42840903), (7, 18360387), (9, 14280301), (21, 6120129), (59, 2178351), (63, 2040043), (71, 1810179), (177, 726117), (213, 603393), (413, 311193), (487, 263907), (497, 258597), (531, 242039), (639, 201131), (1239, 103731), (1461, 87969), (1491, 86199), (3409, 37701), (3717, 34577), (4189, 30681), (4383, 29323), (4473, 28733), (10227, 12567)]