21204992

素因数分解:

$2^{12}\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:222

約数の個数: 52

約数和(自身を含む): 44034816

約数和(自身を除く): 22829824

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 167, 248, 256, 334, 496, 512, 668, 992, 1024, 1336, 1984, 2048, 2672, 3968, 4096, 5177, 5344, 7936, 10354, 10688, 15872, 20708, 21376, 31744, 41416, 42752, 63488, 82832, 85504, 126976, 165664, 171008, 331328, 342016, 662656, 684032, 1325312, 2650624, 5301248, 10602496, 21204992]

約数ペア:

[(1, 21204992), (2, 10602496), (4, 5301248), (8, 2650624), (16, 1325312), (31, 684032), (32, 662656), (62, 342016), (64, 331328), (124, 171008), (128, 165664), (167, 126976), (248, 85504), (256, 82832), (334, 63488), (496, 42752), (512, 41416), (668, 31744), (992, 21376), (1024, 20708), (1336, 15872), (1984, 10688), (2048, 10354), (2672, 7936), (3968, 5344), (4096, 5177)]