20915808

素因数分解:

$2^5\times 3^1\times {\mathrm{19}}^1\times {\mathrm{11467}}^1$

素因数の和:11499

約数の個数: 48

約数和(自身を含む): 57798720

約数和(自身を除く): 36882912

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 32, 38, 48, 57, 76, 96, 114, 152, 228, 304, 456, 608, 912, 1824, 11467, 22934, 34401, 45868, 68802, 91736, 137604, 183472, 217873, 275208, 366944, 435746, 550416, 653619, 871492, 1100832, 1307238, 1742984, 2614476, 3485968, 5228952, 6971936, 10457904, 20915808]

約数ペア:

[(1, 20915808), (2, 10457904), (3, 6971936), (4, 5228952), (6, 3485968), (8, 2614476), (12, 1742984), (16, 1307238), (19, 1100832), (24, 871492), (32, 653619), (38, 550416), (48, 435746), (57, 366944), (76, 275208), (96, 217873), (114, 183472), (152, 137604), (228, 91736), (304, 68802), (456, 45868), (608, 34401), (912, 22934), (1824, 11467)]