21366940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{21803}}^1$

素因数の和:21826

約数の個数: 36

約数和(自身を含む): 52198776

約数和(自身を除く): 30831836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 21803, 43606, 87212, 109015, 152621, 218030, 305242, 436060, 610484, 763105, 1068347, 1526210, 2136694, 3052420, 4273388, 5341735, 10683470, 21366940]

約数ペア:

[(1, 21366940), (2, 10683470), (4, 5341735), (5, 4273388), (7, 3052420), (10, 2136694), (14, 1526210), (20, 1068347), (28, 763105), (35, 610484), (49, 436060), (70, 305242), (98, 218030), (140, 152621), (196, 109015), (245, 87212), (490, 43606), (980, 21803)]