19937152

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:215

約数の個数: 64

約数和(自身を含む): 42411600

約数和(自身を除く): 22474448

約数列:

[1, 2, 4, 8, 16, 29, 32, 41, 58, 64, 82, 116, 128, 131, 164, 232, 262, 328, 464, 524, 656, 928, 1048, 1189, 1312, 1856, 2096, 2378, 2624, 3712, 3799, 4192, 4756, 5248, 5371, 7598, 8384, 9512, 10742, 15196, 16768, 19024, 21484, 30392, 38048, 42968, 60784, 76096, 85936, 121568, 152192, 155759, 171872, 243136, 311518, 343744, 486272, 623036, 687488, 1246072, 2492144, 4984288, 9968576, 19937152]

約数ペア:

[(1, 19937152), (2, 9968576), (4, 4984288), (8, 2492144), (16, 1246072), (29, 687488), (32, 623036), (41, 486272), (58, 343744), (64, 311518), (82, 243136), (116, 171872), (128, 155759), (131, 152192), (164, 121568), (232, 85936), (262, 76096), (328, 60784), (464, 42968), (524, 38048), (656, 30392), (928, 21484), (1048, 19024), (1189, 16768), (1312, 15196), (1856, 10742), (2096, 9512), (2378, 8384), (2624, 7598), (3712, 5371), (3799, 5248), (4192, 4756)]