21374910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{541}}^1$

素因数の和:993

約数の個数: 48

約数和(自身を含む): 55804320

約数和(自身を除く): 34429410

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 439, 541, 878, 1082, 1317, 1623, 2195, 2634, 2705, 3246, 3951, 4390, 4869, 5410, 6585, 7902, 8115, 9738, 13170, 16230, 19755, 24345, 39510, 48690, 237499, 474998, 712497, 1187495, 1424994, 2137491, 2374990, 3562485, 4274982, 7124970, 10687455, 21374910]

約数ペア:

[(1, 21374910), (2, 10687455), (3, 7124970), (5, 4274982), (6, 3562485), (9, 2374990), (10, 2137491), (15, 1424994), (18, 1187495), (30, 712497), (45, 474998), (90, 237499), (439, 48690), (541, 39510), (878, 24345), (1082, 19755), (1317, 16230), (1623, 13170), (2195, 9738), (2634, 8115), (2705, 7902), (3246, 6585), (3951, 5410), (4390, 4869)]