21175220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3319}}^1$

素因数の和:3368

約数の個数: 48

約数和(自身を含む): 50198400

約数和(自身を除く): 29023180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 580, 638, 1276, 1595, 3190, 3319, 6380, 6638, 13276, 16595, 33190, 36509, 66380, 73018, 96251, 146036, 182545, 192502, 365090, 385004, 481255, 730180, 962510, 1058761, 1925020, 2117522, 4235044, 5293805, 10587610, 21175220]

約数ペア:

[(1, 21175220), (2, 10587610), (4, 5293805), (5, 4235044), (10, 2117522), (11, 1925020), (20, 1058761), (22, 962510), (29, 730180), (44, 481255), (55, 385004), (58, 365090), (110, 192502), (116, 182545), (145, 146036), (220, 96251), (290, 73018), (319, 66380), (580, 36509), (638, 33190), (1276, 16595), (1595, 13276), (3190, 6638), (3319, 6380)]