20914068

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{811}}^1$

素因数の和:1132

約数の個数: 48

約数和(自身を含む): 56021504

約数和(自身を除く): 35107436

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 307, 614, 811, 921, 1228, 1622, 1842, 2149, 2433, 3244, 3684, 4298, 4866, 5677, 6447, 8596, 9732, 11354, 12894, 17031, 22708, 25788, 34062, 68124, 248977, 497954, 746931, 995908, 1493862, 1742839, 2987724, 3485678, 5228517, 6971356, 10457034, 20914068]

約数ペア:

[(1, 20914068), (2, 10457034), (3, 6971356), (4, 5228517), (6, 3485678), (7, 2987724), (12, 1742839), (14, 1493862), (21, 995908), (28, 746931), (42, 497954), (84, 248977), (307, 68124), (614, 34062), (811, 25788), (921, 22708), (1228, 17031), (1622, 12894), (1842, 11354), (2149, 9732), (2433, 8596), (3244, 6447), (3684, 5677), (4298, 4866)]