21535250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 45287424

約数和(自身を除く): 23752174

約数列:

[1, 2, 5, 10, 11, 22, 25, 41, 50, 55, 82, 110, 125, 191, 205, 250, 275, 382, 410, 451, 550, 902, 955, 1025, 1375, 1910, 2050, 2101, 2255, 2750, 4202, 4510, 4775, 5125, 7831, 9550, 10250, 10505, 11275, 15662, 21010, 22550, 23875, 39155, 47750, 52525, 56375, 78310, 86141, 105050, 112750, 172282, 195775, 262625, 391550, 430705, 525250, 861410, 978875, 1957750, 2153525, 4307050, 10767625, 21535250]

約数ペア:

[(1, 21535250), (2, 10767625), (5, 4307050), (10, 2153525), (11, 1957750), (22, 978875), (25, 861410), (41, 525250), (50, 430705), (55, 391550), (82, 262625), (110, 195775), (125, 172282), (191, 112750), (205, 105050), (250, 86141), (275, 78310), (382, 56375), (410, 52525), (451, 47750), (550, 39155), (902, 23875), (955, 22550), (1025, 21010), (1375, 15662), (1910, 11275), (2050, 10505), (2101, 10250), (2255, 9550), (2750, 7831), (4202, 5125), (4510, 4775)]