21165650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1327}}^1$

素因数の和:1379

約数の個数: 48

約数和(自身を含む): 44461440

約数和(自身を除く): 23295790

約数列:

[1, 2, 5, 10, 11, 22, 25, 29, 50, 55, 58, 110, 145, 275, 290, 319, 550, 638, 725, 1327, 1450, 1595, 2654, 3190, 6635, 7975, 13270, 14597, 15950, 29194, 33175, 38483, 66350, 72985, 76966, 145970, 192415, 364925, 384830, 423313, 729850, 846626, 962075, 1924150, 2116565, 4233130, 10582825, 21165650]

約数ペア:

[(1, 21165650), (2, 10582825), (5, 4233130), (10, 2116565), (11, 1924150), (22, 962075), (25, 846626), (29, 729850), (50, 423313), (55, 384830), (58, 364925), (110, 192415), (145, 145970), (275, 76966), (290, 72985), (319, 66350), (550, 38483), (638, 33175), (725, 29194), (1327, 15950), (1450, 14597), (1595, 13270), (2654, 7975), (3190, 6635)]