21838908

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2857}}^1$

素因数の和:2891

約数の個数: 72

約数和(自身を含む): 63859152

約数和(自身を除く): 42020244

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 49, 52, 78, 84, 91, 98, 147, 156, 182, 196, 273, 294, 364, 546, 588, 637, 1092, 1274, 1911, 2548, 2857, 3822, 5714, 7644, 8571, 11428, 17142, 19999, 34284, 37141, 39998, 59997, 74282, 79996, 111423, 119994, 139993, 148564, 222846, 239988, 259987, 279986, 419979, 445692, 519974, 559972, 779961, 839958, 1039948, 1559922, 1679916, 1819909, 3119844, 3639818, 5459727, 7279636, 10919454, 21838908]

約数ペア:

[(1, 21838908), (2, 10919454), (3, 7279636), (4, 5459727), (6, 3639818), (7, 3119844), (12, 1819909), (13, 1679916), (14, 1559922), (21, 1039948), (26, 839958), (28, 779961), (39, 559972), (42, 519974), (49, 445692), (52, 419979), (78, 279986), (84, 259987), (91, 239988), (98, 222846), (147, 148564), (156, 139993), (182, 119994), (196, 111423), (273, 79996), (294, 74282), (364, 59997), (546, 39998), (588, 37141), (637, 34284), (1092, 19999), (1274, 17142), (1911, 11428), (2548, 8571), (2857, 7644), (3822, 5714)]