21089940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1123}}^1$

素因数の和:1448

約数の個数: 48

約数和(自身を含む): 59293248

約数和(自身を除く): 38203308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 313, 626, 939, 1123, 1252, 1565, 1878, 2246, 3130, 3369, 3756, 4492, 4695, 5615, 6260, 6738, 9390, 11230, 13476, 16845, 18780, 22460, 33690, 67380, 351499, 702998, 1054497, 1405996, 1757495, 2108994, 3514990, 4217988, 5272485, 7029980, 10544970, 21089940]

約数ペア:

[(1, 21089940), (2, 10544970), (3, 7029980), (4, 5272485), (5, 4217988), (6, 3514990), (10, 2108994), (12, 1757495), (15, 1405996), (20, 1054497), (30, 702998), (60, 351499), (313, 67380), (626, 33690), (939, 22460), (1123, 18780), (1252, 16845), (1565, 13476), (1878, 11230), (2246, 9390), (3130, 6738), (3369, 6260), (3756, 5615), (4492, 4695)]