20484536

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{683}}^1$

素因数の和:875

約数の個数: 32

約数和(自身を含む): 40383360

約数和(自身を除く): 19898824

約数列:

[1, 2, 4, 8, 23, 46, 92, 163, 184, 326, 652, 683, 1304, 1366, 2732, 3749, 5464, 7498, 14996, 15709, 29992, 31418, 62836, 111329, 125672, 222658, 445316, 890632, 2560567, 5121134, 10242268, 20484536]

約数ペア:

[(1, 20484536), (2, 10242268), (4, 5121134), (8, 2560567), (23, 890632), (46, 445316), (92, 222658), (163, 125672), (184, 111329), (326, 62836), (652, 31418), (683, 29992), (1304, 15709), (1366, 14996), (2732, 7498), (3749, 5464)]