20576972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{5009}}^1$

素因数の和:5105

約数の個数: 24

約数和(自身を含む): 39278400

約数和(自身を除く): 18701428

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 2054, 4108, 5009, 10018, 20036, 65117, 130234, 260468, 395711, 791422, 1582844, 5144243, 10288486, 20576972]

約数ペア:

[(1, 20576972), (2, 10288486), (4, 5144243), (13, 1582844), (26, 791422), (52, 395711), (79, 260468), (158, 130234), (316, 65117), (1027, 20036), (2054, 10018), (4108, 5009)]