21779460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{120997}}^1$

素因数の和:121012

約数の個数: 36

約数和(自身を含む): 66064908

約数和(自身を除く): 44285448

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 120997, 241994, 362991, 483988, 604985, 725982, 1088973, 1209970, 1451964, 1814955, 2177946, 2419940, 3629910, 4355892, 5444865, 7259820, 10889730, 21779460]

約数ペア:

[(1, 21779460), (2, 10889730), (3, 7259820), (4, 5444865), (5, 4355892), (6, 3629910), (9, 2419940), (10, 2177946), (12, 1814955), (15, 1451964), (18, 1209970), (20, 1088973), (30, 725982), (36, 604985), (45, 483988), (60, 362991), (90, 241994), (180, 120997)]