21437964

素因数分解:

$2^2\times 3^2\times {\mathrm{89}}^1\times {\mathrm{6691}}^1$

素因数の和:6790

約数の個数: 36

約数和(自身を含む): 54807480

約数和(自身を除く): 33369516

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 89, 178, 267, 356, 534, 801, 1068, 1602, 3204, 6691, 13382, 20073, 26764, 40146, 60219, 80292, 120438, 240876, 595499, 1190998, 1786497, 2381996, 3572994, 5359491, 7145988, 10718982, 21437964]

約数ペア:

[(1, 21437964), (2, 10718982), (3, 7145988), (4, 5359491), (6, 3572994), (9, 2381996), (12, 1786497), (18, 1190998), (36, 595499), (89, 240876), (178, 120438), (267, 80292), (356, 60219), (534, 40146), (801, 26764), (1068, 20073), (1602, 13382), (3204, 6691)]