20914810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{587}}^1$

素因数の和:1110

約数の個数: 32

約数和(自身を含む): 43182720

約数和(自身を除く): 22267910

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 509, 587, 1018, 1174, 2545, 2935, 3563, 4109, 5090, 5870, 7126, 8218, 17815, 20545, 35630, 41090, 298783, 597566, 1493915, 2091481, 2987830, 4182962, 10457405, 20914810]

約数ペア:

[(1, 20914810), (2, 10457405), (5, 4182962), (7, 2987830), (10, 2091481), (14, 1493915), (35, 597566), (70, 298783), (509, 41090), (587, 35630), (1018, 20545), (1174, 17815), (2545, 8218), (2935, 7126), (3563, 5870), (4109, 5090)]