21356551700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{524731}}^1$

素因数の和:524793

約数の個数: 72

約数和(自身を含む): 51923280864

約数和(自身を除く): 30566729164

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 37, 44, 50, 55, 74, 100, 110, 148, 185, 220, 275, 370, 407, 550, 740, 814, 925, 1100, 1628, 1850, 2035, 3700, 4070, 8140, 10175, 20350, 40700, 524731, 1049462, 2098924, 2623655, 5247310, 5772041, 10494620, 11544082, 13118275, 19415047, 23088164, 26236550, 28860205, 38830094, 52473100, 57720410, 77660188, 97075235, 115440820, 144301025, 194150470, 213565517, 288602050, 388300940, 427131034, 485376175, 577204100, 854262068, 970752350, 1067827585, 1941504700, 2135655170, 4271310340, 5339137925, 10678275850, 21356551700]

約数ペア:

[(1, 21356551700), (2, 10678275850), (4, 5339137925), (5, 4271310340), (10, 2135655170), (11, 1941504700), (20, 1067827585), (22, 970752350), (25, 854262068), (37, 577204100), (44, 485376175), (50, 427131034), (55, 388300940), (74, 288602050), (100, 213565517), (110, 194150470), (148, 144301025), (185, 115440820), (220, 97075235), (275, 77660188), (370, 57720410), (407, 52473100), (550, 38830094), (740, 28860205), (814, 26236550), (925, 23088164), (1100, 19415047), (1628, 13118275), (1850, 11544082), (2035, 10494620), (3700, 5772041), (4070, 5247310), (8140, 2623655), (10175, 2098924), (20350, 1049462), (40700, 524731)]