21016890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{293}}^1\times {\mathrm{797}}^1$

素因数の和:1103

約数の個数: 48

約数和(自身を含む): 54899208

約数和(自身を除く): 33882318

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 293, 586, 797, 879, 1465, 1594, 1758, 2391, 2637, 2930, 3985, 4395, 4782, 5274, 7173, 7970, 8790, 11955, 13185, 14346, 23910, 26370, 35865, 71730, 233521, 467042, 700563, 1167605, 1401126, 2101689, 2335210, 3502815, 4203378, 7005630, 10508445, 21016890]

約数ペア:

[(1, 21016890), (2, 10508445), (3, 7005630), (5, 4203378), (6, 3502815), (9, 2335210), (10, 2101689), (15, 1401126), (18, 1167605), (30, 700563), (45, 467042), (90, 233521), (293, 71730), (586, 35865), (797, 26370), (879, 23910), (1465, 14346), (1594, 13185), (1758, 11955), (2391, 8790), (2637, 7970), (2930, 7173), (3985, 5274), (4395, 4782)]