23989815

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{593}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 44478720

約数和(自身を除く): 20488905

約数列:

[1, 3, 5, 9, 15, 29, 31, 45, 87, 93, 145, 155, 261, 279, 435, 465, 593, 899, 1305, 1395, 1779, 2697, 2965, 4495, 5337, 8091, 8895, 13485, 17197, 18383, 26685, 40455, 51591, 55149, 85985, 91915, 154773, 165447, 257955, 275745, 533107, 773865, 827235, 1599321, 2665535, 4797963, 7996605, 23989815]

約数ペア:

[(1, 23989815), (3, 7996605), (5, 4797963), (9, 2665535), (15, 1599321), (29, 827235), (31, 773865), (45, 533107), (87, 275745), (93, 257955), (145, 165447), (155, 154773), (261, 91915), (279, 85985), (435, 55149), (465, 51591), (593, 40455), (899, 26685), (1305, 18383), (1395, 17197), (1779, 13485), (2697, 8895), (2965, 8091), (4495, 5337)]