21335820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32327}}^1$

素因数の和:32350

約数の個数: 48

約数和(自身を含む): 65173248

約数和(自身を除く): 43837428

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 32327, 64654, 96981, 129308, 161635, 193962, 323270, 355597, 387924, 484905, 646540, 711194, 969810, 1066791, 1422388, 1777985, 1939620, 2133582, 3555970, 4267164, 5333955, 7111940, 10667910, 21335820]

約数ペア:

[(1, 21335820), (2, 10667910), (3, 7111940), (4, 5333955), (5, 4267164), (6, 3555970), (10, 2133582), (11, 1939620), (12, 1777985), (15, 1422388), (20, 1066791), (22, 969810), (30, 711194), (33, 646540), (44, 484905), (55, 387924), (60, 355597), (66, 323270), (110, 193962), (132, 161635), (165, 129308), (220, 96981), (330, 64654), (660, 32327)]