20917104

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{33521}}^1$

素因数の和:33545

約数の個数: 40

約数和(自身を含む): 58194192

約数和(自身を除く): 37277088

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 33521, 67042, 100563, 134084, 201126, 268168, 402252, 435773, 536336, 804504, 871546, 1307319, 1609008, 1743092, 2614638, 3486184, 5229276, 6972368, 10458552, 20917104]

約数ペア:

[(1, 20917104), (2, 10458552), (3, 6972368), (4, 5229276), (6, 3486184), (8, 2614638), (12, 1743092), (13, 1609008), (16, 1307319), (24, 871546), (26, 804504), (39, 536336), (48, 435773), (52, 402252), (78, 268168), (104, 201126), (156, 134084), (208, 100563), (312, 67042), (624, 33521)]