20999700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{23333}}^1$

素因数の和:23353

約数の個数: 54

約数和(自身を含む): 65825214

約数和(自身を除く): 44825514

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 23333, 46666, 69999, 93332, 116665, 139998, 209997, 233330, 279996, 349995, 419994, 466660, 583325, 699990, 839988, 1049985, 1166650, 1399980, 1749975, 2099970, 2333300, 3499950, 4199940, 5249925, 6999900, 10499850, 20999700]

約数ペア:

[(1, 20999700), (2, 10499850), (3, 6999900), (4, 5249925), (5, 4199940), (6, 3499950), (9, 2333300), (10, 2099970), (12, 1749975), (15, 1399980), (18, 1166650), (20, 1049985), (25, 839988), (30, 699990), (36, 583325), (45, 466660), (50, 419994), (60, 349995), (75, 279996), (90, 233330), (100, 209997), (150, 139998), (180, 116665), (225, 93332), (300, 69999), (450, 46666), (900, 23333)]