21559902

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5641}}^1$

素因数の和:5673

約数の個数: 48

約数和(自身を含む): 54027792

約数和(自身を除く): 32467890

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 49, 78, 91, 98, 147, 182, 273, 294, 546, 637, 1274, 1911, 3822, 5641, 11282, 16923, 33846, 39487, 73333, 78974, 118461, 146666, 219999, 236922, 276409, 439998, 513331, 552818, 829227, 1026662, 1539993, 1658454, 3079986, 3593317, 7186634, 10779951, 21559902]

約数ペア:

[(1, 21559902), (2, 10779951), (3, 7186634), (6, 3593317), (7, 3079986), (13, 1658454), (14, 1539993), (21, 1026662), (26, 829227), (39, 552818), (42, 513331), (49, 439998), (78, 276409), (91, 236922), (98, 219999), (147, 146666), (182, 118461), (273, 78974), (294, 73333), (546, 39487), (637, 33846), (1274, 16923), (1911, 11282), (3822, 5641)]