201721970

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{695593}}^1$

素因数の和:695629

約数の個数: 16

約数和(自身を含む): 375620760

約数和(自身を除く): 173898790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 695593, 1391186, 3477965, 6955930, 20172197, 40344394, 100860985, 201721970]

約数ペア:

[(1, 201721970), (2, 100860985), (5, 40344394), (10, 20172197), (29, 6955930), (58, 3477965), (145, 1391186), (290, 695593)]