21915474

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{947}}^1$

素因数の和:1007

約数の個数: 64

約数和(自身を含む): 54604800

約数和(自身を除く): 32689326

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 29, 38, 42, 57, 58, 87, 114, 133, 174, 203, 266, 399, 406, 551, 609, 798, 947, 1102, 1218, 1653, 1894, 2841, 3306, 3857, 5682, 6629, 7714, 11571, 13258, 17993, 19887, 23142, 27463, 35986, 39774, 53979, 54926, 82389, 107958, 125951, 164778, 192241, 251902, 377853, 384482, 521797, 576723, 755706, 1043594, 1153446, 1565391, 3130782, 3652579, 7305158, 10957737, 21915474]

約数ペア:

[(1, 21915474), (2, 10957737), (3, 7305158), (6, 3652579), (7, 3130782), (14, 1565391), (19, 1153446), (21, 1043594), (29, 755706), (38, 576723), (42, 521797), (57, 384482), (58, 377853), (87, 251902), (114, 192241), (133, 164778), (174, 125951), (203, 107958), (266, 82389), (399, 54926), (406, 53979), (551, 39774), (609, 35986), (798, 27463), (947, 23142), (1102, 19887), (1218, 17993), (1653, 13258), (1894, 11571), (2841, 7714), (3306, 6629), (3857, 5682)]