21200584575

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{47741}}^1$

素因数の和:47976

約数の個数: 48

約数和(自身を含む): 36372529152

約数和(自身を除く): 15171944577

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 191, 465, 573, 775, 955, 2325, 2865, 4775, 5921, 14325, 17763, 29605, 47741, 88815, 143223, 148025, 238705, 444075, 716115, 1193525, 1479971, 3580575, 4439913, 7399855, 9118531, 22199565, 27355593, 36999275, 45592655, 110997825, 136777965, 227963275, 282674461, 683889825, 848023383, 1413372305, 4240116915, 7066861525, 21200584575]

約数ペア:

[(1, 21200584575), (3, 7066861525), (5, 4240116915), (15, 1413372305), (25, 848023383), (31, 683889825), (75, 282674461), (93, 227963275), (155, 136777965), (191, 110997825), (465, 45592655), (573, 36999275), (775, 27355593), (955, 22199565), (2325, 9118531), (2865, 7399855), (4775, 4439913), (5921, 3580575), (14325, 1479971), (17763, 1193525), (29605, 716115), (47741, 444075), (88815, 238705), (143223, 148025)]