20403908

素因数分解:

$2^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{3049}}^1$

素因数の和:3299

約数の個数: 24

約数和(自身を含む): 40992000

約数和(自身を除く): 20588092

約数列:

[1, 2, 4, 7, 14, 28, 239, 478, 956, 1673, 3049, 3346, 6098, 6692, 12196, 21343, 42686, 85372, 728711, 1457422, 2914844, 5100977, 10201954, 20403908]

約数ペア:

[(1, 20403908), (2, 10201954), (4, 5100977), (7, 2914844), (14, 1457422), (28, 728711), (239, 85372), (478, 42686), (956, 21343), (1673, 12196), (3049, 6692), (3346, 6098)]