21347460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{233}}^1\times {\mathrm{509}}^1$

素因数の和:757

約数の個数: 72

約数和(自身を含む): 65159640

約数和(自身を除く): 43812180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 233, 466, 509, 699, 932, 1018, 1165, 1398, 1527, 2036, 2097, 2330, 2545, 2796, 3054, 3495, 4194, 4581, 4660, 5090, 6108, 6990, 7635, 8388, 9162, 10180, 10485, 13980, 15270, 18324, 20970, 22905, 30540, 41940, 45810, 91620, 118597, 237194, 355791, 474388, 592985, 711582, 1067373, 1185970, 1423164, 1778955, 2134746, 2371940, 3557910, 4269492, 5336865, 7115820, 10673730, 21347460]

約数ペア:

[(1, 21347460), (2, 10673730), (3, 7115820), (4, 5336865), (5, 4269492), (6, 3557910), (9, 2371940), (10, 2134746), (12, 1778955), (15, 1423164), (18, 1185970), (20, 1067373), (30, 711582), (36, 592985), (45, 474388), (60, 355791), (90, 237194), (180, 118597), (233, 91620), (466, 45810), (509, 41940), (699, 30540), (932, 22905), (1018, 20970), (1165, 18324), (1398, 15270), (1527, 13980), (2036, 10485), (2097, 10180), (2330, 9162), (2545, 8388), (2796, 7635), (3054, 6990), (3495, 6108), (4194, 5090), (4581, 4660)]