21692205

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2819}}^1$

素因数の和:2855

約数の個数: 40

約数和(自身を含む): 40946400

約数和(自身を除く): 19254195

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 285, 405, 513, 855, 1539, 2565, 2819, 7695, 8457, 14095, 25371, 42285, 53561, 76113, 126855, 160683, 228339, 267805, 380565, 482049, 803415, 1141695, 1446147, 2410245, 4338441, 7230735, 21692205]

約数ペア:

[(1, 21692205), (3, 7230735), (5, 4338441), (9, 2410245), (15, 1446147), (19, 1141695), (27, 803415), (45, 482049), (57, 380565), (81, 267805), (95, 228339), (135, 160683), (171, 126855), (285, 76113), (405, 53561), (513, 42285), (855, 25371), (1539, 14095), (2565, 8457), (2819, 7695)]