21005970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{700199}}^1$

素因数の和:700209

約数の個数: 16

約数和(自身を含む): 50414400

約数和(自身を除く): 29408430

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 700199, 1400398, 2100597, 3500995, 4201194, 7001990, 10502985, 21005970]

約数ペア:

[(1, 21005970), (2, 10502985), (3, 7001990), (5, 4201194), (6, 3500995), (10, 2100597), (15, 1400398), (30, 700199)]