21287184

素因数分解:

$2^4\times 3^1\times {\mathrm{317}}^1\times {\mathrm{1399}}^1$

素因数の和:1727

約数の個数: 40

約数和(自身を含む): 55204800

約数和(自身を除く): 33917616

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 317, 634, 951, 1268, 1399, 1902, 2536, 2798, 3804, 4197, 5072, 5596, 7608, 8394, 11192, 15216, 16788, 22384, 33576, 67152, 443483, 886966, 1330449, 1773932, 2660898, 3547864, 5321796, 7095728, 10643592, 21287184]

約数ペア:

[(1, 21287184), (2, 10643592), (3, 7095728), (4, 5321796), (6, 3547864), (8, 2660898), (12, 1773932), (16, 1330449), (24, 886966), (48, 443483), (317, 67152), (634, 33576), (951, 22384), (1268, 16788), (1399, 15216), (1902, 11192), (2536, 8394), (2798, 7608), (3804, 5596), (4197, 5072)]