213078345

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{503}}^1\times {\mathrm{911}}^1$

素因数の和:1453

約数の個数: 32

約数和(自身を含む): 353009664

約数和(自身を除く): 139931319

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 503, 911, 1509, 2515, 2733, 4555, 7545, 13665, 15593, 28241, 46779, 77965, 84723, 141205, 233895, 423615, 458233, 1374699, 2291165, 6873495, 14205223, 42615669, 71026115, 213078345]

約数ペア:

[(1, 213078345), (3, 71026115), (5, 42615669), (15, 14205223), (31, 6873495), (93, 2291165), (155, 1374699), (465, 458233), (503, 423615), (911, 233895), (1509, 141205), (2515, 84723), (2733, 77965), (4555, 46779), (7545, 28241), (13665, 15593)]