20646304

素因数分解:

$2^5\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1511}}^1$

素因数の和:1589

約数の個数: 48

約数和(自身を含む): 47246976

約数和(自身を除く): 26600672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 112, 122, 224, 244, 427, 488, 854, 976, 1511, 1708, 1952, 3022, 3416, 6044, 6832, 10577, 12088, 13664, 21154, 24176, 42308, 48352, 84616, 92171, 169232, 184342, 338464, 368684, 645197, 737368, 1290394, 1474736, 2580788, 2949472, 5161576, 10323152, 20646304]

約数ペア:

[(1, 20646304), (2, 10323152), (4, 5161576), (7, 2949472), (8, 2580788), (14, 1474736), (16, 1290394), (28, 737368), (32, 645197), (56, 368684), (61, 338464), (112, 184342), (122, 169232), (224, 92171), (244, 84616), (427, 48352), (488, 42308), (854, 24176), (976, 21154), (1511, 13664), (1708, 12088), (1952, 10577), (3022, 6832), (3416, 6044)]