21258015

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{48869}}^1$

素因数の和:48906

約数の個数: 16

約数和(自身を含む): 35186400

約数和(自身を除く): 13928385

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 48869, 146607, 244345, 733035, 1417201, 4251603, 7086005, 21258015]

約数ペア:

[(1, 21258015), (3, 7086005), (5, 4251603), (15, 1417201), (29, 733035), (87, 244345), (145, 146607), (435, 48869)]