21300188

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{359}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 46287360

約数和(自身を除く): 24987172

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 163, 182, 326, 359, 364, 652, 718, 1141, 1436, 2119, 2282, 2513, 4238, 4564, 4667, 5026, 8476, 9334, 10052, 14833, 18668, 29666, 32669, 58517, 59332, 65338, 117034, 130676, 234068, 409619, 760721, 819238, 1521442, 1638476, 3042884, 5325047, 10650094, 21300188]

約数ペア:

[(1, 21300188), (2, 10650094), (4, 5325047), (7, 3042884), (13, 1638476), (14, 1521442), (26, 819238), (28, 760721), (52, 409619), (91, 234068), (163, 130676), (182, 117034), (326, 65338), (359, 59332), (364, 58517), (652, 32669), (718, 29666), (1141, 18668), (1436, 14833), (2119, 10052), (2282, 9334), (2513, 8476), (4238, 5026), (4564, 4667)]