21316096

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:145

約数の個数: 80

約数和(自身を含む): 47139840

約数和(自身を除く): 25823744

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 64, 68, 79, 124, 128, 136, 158, 248, 256, 272, 316, 496, 512, 527, 544, 632, 992, 1054, 1088, 1264, 1343, 1984, 2108, 2176, 2449, 2528, 2686, 3968, 4216, 4352, 4898, 5056, 5372, 7936, 8432, 8704, 9796, 10112, 10744, 15872, 16864, 19592, 20224, 21488, 33728, 39184, 40448, 41633, 42976, 67456, 78368, 83266, 85952, 134912, 156736, 166532, 171904, 269824, 313472, 333064, 343808, 626944, 666128, 687616, 1253888, 1332256, 2664512, 5329024, 10658048, 21316096]

約数ペア:

[(1, 21316096), (2, 10658048), (4, 5329024), (8, 2664512), (16, 1332256), (17, 1253888), (31, 687616), (32, 666128), (34, 626944), (62, 343808), (64, 333064), (68, 313472), (79, 269824), (124, 171904), (128, 166532), (136, 156736), (158, 134912), (248, 85952), (256, 83266), (272, 78368), (316, 67456), (496, 42976), (512, 41633), (527, 40448), (544, 39184), (632, 33728), (992, 21488), (1054, 20224), (1088, 19592), (1264, 16864), (1343, 15872), (1984, 10744), (2108, 10112), (2176, 9796), (2449, 8704), (2528, 8432), (2686, 7936), (3968, 5372), (4216, 5056), (4352, 4898)]