20721664

素因数分解:

$2^{12}\times {\mathrm{5059}}^1$

素因数の和:5083

約数の個数: 26

約数和(自身を含む): 41446460

約数和(自身を除く): 20724796

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 5059, 10118, 20236, 40472, 80944, 161888, 323776, 647552, 1295104, 2590208, 5180416, 10360832, 20721664]

約数ペア:

[(1, 20721664), (2, 10360832), (4, 5180416), (8, 2590208), (16, 1295104), (32, 647552), (64, 323776), (128, 161888), (256, 80944), (512, 40472), (1024, 20236), (2048, 10118), (4096, 5059)]