20355916

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{461}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 43464960

約数和(自身を除く): 23109044

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 83, 133, 166, 266, 332, 461, 532, 581, 922, 1162, 1577, 1844, 2324, 3154, 3227, 6308, 6454, 8759, 11039, 12908, 17518, 22078, 35036, 38263, 44156, 61313, 76526, 122626, 153052, 245252, 267841, 535682, 726997, 1071364, 1453994, 2907988, 5088979, 10177958, 20355916]

約数ペア:

[(1, 20355916), (2, 10177958), (4, 5088979), (7, 2907988), (14, 1453994), (19, 1071364), (28, 726997), (38, 535682), (76, 267841), (83, 245252), (133, 153052), (166, 122626), (266, 76526), (332, 61313), (461, 44156), (532, 38263), (581, 35036), (922, 22078), (1162, 17518), (1577, 12908), (1844, 11039), (2324, 8759), (3154, 6454), (3227, 6308)]