21589380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{433}}^1$

素因数の和:725

約数の個数: 72

約数和(自身を含む): 65875992

約数和(自身を除く): 44286612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 277, 433, 554, 831, 866, 1108, 1299, 1385, 1662, 1732, 2165, 2493, 2598, 2770, 3324, 3897, 4155, 4330, 4986, 5196, 5540, 6495, 7794, 8310, 8660, 9972, 12465, 12990, 15588, 16620, 19485, 24930, 25980, 38970, 49860, 77940, 119941, 239882, 359823, 479764, 599705, 719646, 1079469, 1199410, 1439292, 1799115, 2158938, 2398820, 3598230, 4317876, 5397345, 7196460, 10794690, 21589380]

約数ペア:

[(1, 21589380), (2, 10794690), (3, 7196460), (4, 5397345), (5, 4317876), (6, 3598230), (9, 2398820), (10, 2158938), (12, 1799115), (15, 1439292), (18, 1199410), (20, 1079469), (30, 719646), (36, 599705), (45, 479764), (60, 359823), (90, 239882), (180, 119941), (277, 77940), (433, 49860), (554, 38970), (831, 25980), (866, 24930), (1108, 19485), (1299, 16620), (1385, 15588), (1662, 12990), (1732, 12465), (2165, 9972), (2493, 8660), (2598, 8310), (2770, 7794), (3324, 6495), (3897, 5540), (4155, 5196), (4330, 4986)]