21460551

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 12753849

約数列:

[1, 3, 7, 21, 29, 87, 131, 203, 269, 393, 609, 807, 917, 1883, 2751, 3799, 5649, 7801, 11397, 23403, 26593, 35239, 54607, 79779, 105717, 163821, 246673, 740019, 1021931, 3065793, 7153517, 21460551]

約数ペア:

[(1, 21460551), (3, 7153517), (7, 3065793), (21, 1021931), (29, 740019), (87, 246673), (131, 163821), (203, 105717), (269, 79779), (393, 54607), (609, 35239), (807, 26593), (917, 23403), (1883, 11397), (2751, 7801), (3799, 5649)]