21566330

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{509}}^1$

素因数の和:758

約数の個数: 32

約数和(自身を含む): 41126400

約数和(自身を除く): 19560070

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 223, 446, 509, 1018, 1115, 2230, 2545, 4237, 5090, 8474, 9671, 19342, 21185, 42370, 48355, 96710, 113507, 227014, 567535, 1135070, 2156633, 4313266, 10783165, 21566330]

約数ペア:

[(1, 21566330), (2, 10783165), (5, 4313266), (10, 2156633), (19, 1135070), (38, 567535), (95, 227014), (190, 113507), (223, 96710), (446, 48355), (509, 42370), (1018, 21185), (1115, 19342), (2230, 9671), (2545, 8474), (4237, 5090)]