21589700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1033}}^1$

素因数の和:1077

約数の個数: 72

約数和(自身を含む): 53850720

約数和(自身を除く): 32261020

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 190, 209, 220, 275, 380, 418, 475, 550, 836, 950, 1033, 1045, 1100, 1900, 2066, 2090, 4132, 4180, 5165, 5225, 10330, 10450, 11363, 19627, 20660, 20900, 22726, 25825, 39254, 45452, 51650, 56815, 78508, 98135, 103300, 113630, 196270, 215897, 227260, 284075, 392540, 431794, 490675, 568150, 863588, 981350, 1079485, 1136300, 1962700, 2158970, 4317940, 5397425, 10794850, 21589700]

約数ペア:

[(1, 21589700), (2, 10794850), (4, 5397425), (5, 4317940), (10, 2158970), (11, 1962700), (19, 1136300), (20, 1079485), (22, 981350), (25, 863588), (38, 568150), (44, 490675), (50, 431794), (55, 392540), (76, 284075), (95, 227260), (100, 215897), (110, 196270), (190, 113630), (209, 103300), (220, 98135), (275, 78508), (380, 56815), (418, 51650), (475, 45452), (550, 39254), (836, 25825), (950, 22726), (1033, 20900), (1045, 20660), (1100, 19627), (1900, 11363), (2066, 10450), (2090, 10330), (4132, 5225), (4180, 5165)]