21485820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{3169}}^1$

素因数の和:3294

約数の個数: 48

約数和(自身を含む): 60711840

約数和(自身を除く): 39226020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 113, 226, 339, 452, 565, 678, 1130, 1356, 1695, 2260, 3169, 3390, 6338, 6780, 9507, 12676, 15845, 19014, 31690, 38028, 47535, 63380, 95070, 190140, 358097, 716194, 1074291, 1432388, 1790485, 2148582, 3580970, 4297164, 5371455, 7161940, 10742910, 21485820]

約数ペア:

[(1, 21485820), (2, 10742910), (3, 7161940), (4, 5371455), (5, 4297164), (6, 3580970), (10, 2148582), (12, 1790485), (15, 1432388), (20, 1074291), (30, 716194), (60, 358097), (113, 190140), (226, 95070), (339, 63380), (452, 47535), (565, 38028), (678, 31690), (1130, 19014), (1356, 15845), (1695, 12676), (2260, 9507), (3169, 6780), (3390, 6338)]