20955904

素因数分解:

$2^8\times {\mathrm{109}}^1\times {\mathrm{751}}^1$

素因数の和:876

約数の個数: 36

約数和(自身を含む): 42269920

約数和(自身を除く): 21314016

約数列:

[1, 2, 4, 8, 16, 32, 64, 109, 128, 218, 256, 436, 751, 872, 1502, 1744, 3004, 3488, 6008, 6976, 12016, 13952, 24032, 27904, 48064, 81859, 96128, 163718, 192256, 327436, 654872, 1309744, 2619488, 5238976, 10477952, 20955904]

約数ペア:

[(1, 20955904), (2, 10477952), (4, 5238976), (8, 2619488), (16, 1309744), (32, 654872), (64, 327436), (109, 192256), (128, 163718), (218, 96128), (256, 81859), (436, 48064), (751, 27904), (872, 24032), (1502, 13952), (1744, 12016), (3004, 6976), (3488, 6008)]