21154816

素因数分解:

$2^{10}\times {\mathrm{73}}^1\times {\mathrm{283}}^1$

素因数の和:376

約数の個数: 44

約数和(自身を含む): 43019752

約数和(自身を除く): 21864936

約数列:

[1, 2, 4, 8, 16, 32, 64, 73, 128, 146, 256, 283, 292, 512, 566, 584, 1024, 1132, 1168, 2264, 2336, 4528, 4672, 9056, 9344, 18112, 18688, 20659, 36224, 37376, 41318, 72448, 74752, 82636, 144896, 165272, 289792, 330544, 661088, 1322176, 2644352, 5288704, 10577408, 21154816]

約数ペア:

[(1, 21154816), (2, 10577408), (4, 5288704), (8, 2644352), (16, 1322176), (32, 661088), (64, 330544), (73, 289792), (128, 165272), (146, 144896), (256, 82636), (283, 74752), (292, 72448), (512, 41318), (566, 37376), (584, 36224), (1024, 20659), (1132, 18688), (1168, 18112), (2264, 9344), (2336, 9056), (4528, 4672)]