21873698

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:327

約数の個数: 48

約数和(自身を含む): 42254784

約数和(自身を除く): 20381086

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 103, 154, 197, 206, 394, 539, 721, 1078, 1133, 1379, 1442, 2167, 2266, 2758, 4334, 5047, 7931, 9653, 10094, 15169, 15862, 19306, 20291, 30338, 40582, 55517, 106183, 111034, 142037, 212366, 223201, 284074, 446402, 994259, 1562407, 1988518, 3124814, 10936849, 21873698]

約数ペア:

[(1, 21873698), (2, 10936849), (7, 3124814), (11, 1988518), (14, 1562407), (22, 994259), (49, 446402), (77, 284074), (98, 223201), (103, 212366), (154, 142037), (197, 111034), (206, 106183), (394, 55517), (539, 40582), (721, 30338), (1078, 20291), (1133, 19306), (1379, 15862), (1442, 15169), (2167, 10094), (2266, 9653), (2758, 7931), (4334, 5047)]