21484020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1697}}^1$

素因数の和:1920

約数の個数: 48

約数和(自身を含む): 60475968

約数和(自身を除く): 38991948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 211, 422, 633, 844, 1055, 1266, 1697, 2110, 2532, 3165, 3394, 4220, 5091, 6330, 6788, 8485, 10182, 12660, 16970, 20364, 25455, 33940, 50910, 101820, 358067, 716134, 1074201, 1432268, 1790335, 2148402, 3580670, 4296804, 5371005, 7161340, 10742010, 21484020]

約数ペア:

[(1, 21484020), (2, 10742010), (3, 7161340), (4, 5371005), (5, 4296804), (6, 3580670), (10, 2148402), (12, 1790335), (15, 1432268), (20, 1074201), (30, 716134), (60, 358067), (211, 101820), (422, 50910), (633, 33940), (844, 25455), (1055, 20364), (1266, 16970), (1697, 12660), (2110, 10182), (2532, 8485), (3165, 6788), (3394, 6330), (4220, 5091)]