21171015

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16223}}^1$

素因数の和:16263

約数の個数: 24

約数和(自身を含む): 37964160

約数和(自身を除く): 16793145

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16223, 48669, 81115, 146007, 243345, 470467, 730035, 1411401, 2352335, 4234203, 7057005, 21171015]

約数ペア:

[(1, 21171015), (3, 7057005), (5, 4234203), (9, 2352335), (15, 1411401), (29, 730035), (45, 470467), (87, 243345), (145, 146007), (261, 81115), (435, 48669), (1305, 16223)]