21199744

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1$

素因数の和:435

約数の個数: 64

約数和(自身を含む): 46512000

約数和(自身を除く): 25312256

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 64, 76, 92, 128, 152, 184, 304, 368, 379, 437, 608, 736, 758, 874, 1216, 1472, 1516, 1748, 2432, 2944, 3032, 3496, 6064, 6992, 7201, 8717, 12128, 13984, 14402, 17434, 24256, 27968, 28804, 34868, 48512, 55936, 57608, 69736, 115216, 139472, 165623, 230432, 278944, 331246, 460864, 557888, 662492, 921728, 1115776, 1324984, 2649968, 5299936, 10599872, 21199744]

約数ペア:

[(1, 21199744), (2, 10599872), (4, 5299936), (8, 2649968), (16, 1324984), (19, 1115776), (23, 921728), (32, 662492), (38, 557888), (46, 460864), (64, 331246), (76, 278944), (92, 230432), (128, 165623), (152, 139472), (184, 115216), (304, 69736), (368, 57608), (379, 55936), (437, 48512), (608, 34868), (736, 28804), (758, 27968), (874, 24256), (1216, 17434), (1472, 14402), (1516, 13984), (1748, 12128), (2432, 8717), (2944, 7201), (3032, 6992), (3496, 6064)]