20393235

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5209}}^1$

素因数の和:5252

約数の個数: 32

約数和(自身を含む): 37512000

約数和(自身を除く): 17118765

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 5209, 15627, 26045, 46881, 78135, 140643, 151061, 234405, 453183, 703215, 755305, 1359549, 2265915, 4078647, 6797745, 20393235]

約数ペア:

[(1, 20393235), (3, 6797745), (5, 4078647), (9, 2265915), (15, 1359549), (27, 755305), (29, 703215), (45, 453183), (87, 234405), (135, 151061), (145, 140643), (261, 78135), (435, 46881), (783, 26045), (1305, 15627), (3915, 5209)]