207664737

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:326

約数の個数: 64

約数和(自身を含む): 349747200

約数和(自身を除く): 142082463

約数列:

[1, 3, 7, 19, 21, 29, 57, 87, 131, 133, 137, 203, 393, 399, 411, 551, 609, 917, 959, 1653, 2489, 2603, 2751, 2877, 3799, 3857, 3973, 7467, 7809, 11397, 11571, 11919, 17423, 17947, 18221, 26593, 27811, 52269, 53841, 54663, 72181, 75487, 79779, 83433, 125629, 216543, 226461, 340993, 376887, 505267, 520463, 528409, 1022979, 1515801, 1561389, 1585227, 2386951, 3643241, 7160853, 9888797, 10929723, 29666391, 69221579, 207664737]

約数ペア:

[(1, 207664737), (3, 69221579), (7, 29666391), (19, 10929723), (21, 9888797), (29, 7160853), (57, 3643241), (87, 2386951), (131, 1585227), (133, 1561389), (137, 1515801), (203, 1022979), (393, 528409), (399, 520463), (411, 505267), (551, 376887), (609, 340993), (917, 226461), (959, 216543), (1653, 125629), (2489, 83433), (2603, 79779), (2751, 75487), (2877, 72181), (3799, 54663), (3857, 53841), (3973, 52269), (7467, 27811), (7809, 26593), (11397, 18221), (11571, 17947), (11919, 17423)]