21267498

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{919}}^1$

素因数の和:979

約数の個数: 64

約数和(自身を含む): 52992000

約数和(自身を除く): 31724502

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, 919, 1102, 1218, 1653, 1838, 2757, 3306, 3857, 5514, 6433, 7714, 11571, 12866, 17461, 19299, 23142, 26651, 34922, 38598, 52383, 53302, 79953, 104766, 122227, 159906, 186557, 244454, 366681, 373114, 506369, 559671, 733362, 1012738, 1119342, 1519107, 3038214, 3544583, 7089166, 10633749, 21267498]

約数ペア:

[(1, 21267498), (2, 10633749), (3, 7089166), (6, 3544583), (7, 3038214), (14, 1519107), (19, 1119342), (21, 1012738), (29, 733362), (38, 559671), (42, 506369), (57, 373114), (58, 366681), (87, 244454), (114, 186557), (133, 159906), (174, 122227), (203, 104766), (266, 79953), (399, 53302), (406, 52383), (551, 38598), (609, 34922), (798, 26651), (919, 23142), (1102, 19299), (1218, 17461), (1653, 12866), (1838, 11571), (2757, 7714), (3306, 6433), (3857, 5514)]