21820020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{359}}^1\times {\mathrm{1013}}^1$

素因数の和:1384

約数の個数: 48

約数和(自身を含む): 61326720

約数和(自身を除く): 39506700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 359, 718, 1013, 1077, 1436, 1795, 2026, 2154, 3039, 3590, 4052, 4308, 5065, 5385, 6078, 7180, 10130, 10770, 12156, 15195, 20260, 21540, 30390, 60780, 363667, 727334, 1091001, 1454668, 1818335, 2182002, 3636670, 4364004, 5455005, 7273340, 10910010, 21820020]

約数ペア:

[(1, 21820020), (2, 10910010), (3, 7273340), (4, 5455005), (5, 4364004), (6, 3636670), (10, 2182002), (12, 1818335), (15, 1454668), (20, 1091001), (30, 727334), (60, 363667), (359, 60780), (718, 30390), (1013, 21540), (1077, 20260), (1436, 15195), (1795, 12156), (2026, 10770), (2154, 10130), (3039, 7180), (3590, 6078), (4052, 5385), (4308, 5065)]