21355642

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1373}}^1$

素因数の和:1494

約数の個数: 32

約数和(自身を含む): 40362624

約数和(自身を除く): 19006982

約数列:

[1, 2, 7, 11, 14, 22, 77, 101, 154, 202, 707, 1111, 1373, 1414, 2222, 2746, 7777, 9611, 15103, 15554, 19222, 30206, 105721, 138673, 211442, 277346, 970711, 1525403, 1941422, 3050806, 10677821, 21355642]

約数ペア:

[(1, 21355642), (2, 10677821), (7, 3050806), (11, 1941422), (14, 1525403), (22, 970711), (77, 277346), (101, 211442), (154, 138673), (202, 105721), (707, 30206), (1111, 19222), (1373, 15554), (1414, 15103), (2222, 9611), (2746, 7777)]