21537240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1777}}^1$

素因数の和:1892

約数の個数: 64

約数和(自身を含む): 65288160

約数和(自身を除く): 43750920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 101, 120, 202, 303, 404, 505, 606, 808, 1010, 1212, 1515, 1777, 2020, 2424, 3030, 3554, 4040, 5331, 6060, 7108, 8885, 10662, 12120, 14216, 17770, 21324, 26655, 35540, 42648, 53310, 71080, 106620, 179477, 213240, 358954, 538431, 717908, 897385, 1076862, 1435816, 1794770, 2153724, 2692155, 3589540, 4307448, 5384310, 7179080, 10768620, 21537240]

約数ペア:

[(1, 21537240), (2, 10768620), (3, 7179080), (4, 5384310), (5, 4307448), (6, 3589540), (8, 2692155), (10, 2153724), (12, 1794770), (15, 1435816), (20, 1076862), (24, 897385), (30, 717908), (40, 538431), (60, 358954), (101, 213240), (120, 179477), (202, 106620), (303, 71080), (404, 53310), (505, 42648), (606, 35540), (808, 26655), (1010, 21324), (1212, 17770), (1515, 14216), (1777, 12120), (2020, 10662), (2424, 8885), (3030, 7108), (3554, 6060), (4040, 5331)]