18921984

素因数分解:

$2^9\times 3^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:245

約数の個数: 80

約数和(自身を含む): 51330048

約数和(自身を除く): 32408064

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 97, 127, 128, 192, 194, 254, 256, 291, 381, 384, 388, 508, 512, 582, 762, 768, 776, 1016, 1164, 1524, 1536, 1552, 2032, 2328, 3048, 3104, 4064, 4656, 6096, 6208, 8128, 9312, 12192, 12319, 12416, 16256, 18624, 24384, 24638, 24832, 32512, 36957, 37248, 48768, 49276, 49664, 65024, 73914, 74496, 97536, 98552, 147828, 148992, 195072, 197104, 295656, 394208, 591312, 788416, 1182624, 1576832, 2365248, 3153664, 4730496, 6307328, 9460992, 18921984]

約数ペア:

[(1, 18921984), (2, 9460992), (3, 6307328), (4, 4730496), (6, 3153664), (8, 2365248), (12, 1576832), (16, 1182624), (24, 788416), (32, 591312), (48, 394208), (64, 295656), (96, 197104), (97, 195072), (127, 148992), (128, 147828), (192, 98552), (194, 97536), (254, 74496), (256, 73914), (291, 65024), (381, 49664), (384, 49276), (388, 48768), (508, 37248), (512, 36957), (582, 32512), (762, 24832), (768, 24638), (776, 24384), (1016, 18624), (1164, 16256), (1524, 12416), (1536, 12319), (1552, 12192), (2032, 9312), (2328, 8128), (3048, 6208), (3104, 6096), (4064, 4656)]