31580556

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{947}}^1$

素因数の和:1358

約数の個数: 48

約数和(自身を含む): 84516096

約数和(自身を除く): 52935540

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 397, 794, 947, 1191, 1588, 1894, 2382, 2779, 2841, 3788, 4764, 5558, 5682, 6629, 8337, 11116, 11364, 13258, 16674, 19887, 26516, 33348, 39774, 79548, 375959, 751918, 1127877, 1503836, 2255754, 2631713, 4511508, 5263426, 7895139, 10526852, 15790278, 31580556]

約数ペア:

[(1, 31580556), (2, 15790278), (3, 10526852), (4, 7895139), (6, 5263426), (7, 4511508), (12, 2631713), (14, 2255754), (21, 1503836), (28, 1127877), (42, 751918), (84, 375959), (397, 79548), (794, 39774), (947, 33348), (1191, 26516), (1588, 19887), (1894, 16674), (2382, 13258), (2779, 11364), (2841, 11116), (3788, 8337), (4764, 6629), (5558, 5682)]