20645888

素因数分解:

$2^{11}\times {\mathrm{17}}^1\times {\mathrm{593}}^1$

素因数の和:632

約数の個数: 48

約数和(自身を含む): 43783740

約数和(自身を除く): 23137852

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 512, 544, 593, 1024, 1088, 1186, 2048, 2176, 2372, 4352, 4744, 8704, 9488, 10081, 17408, 18976, 20162, 34816, 37952, 40324, 75904, 80648, 151808, 161296, 303616, 322592, 607232, 645184, 1214464, 1290368, 2580736, 5161472, 10322944, 20645888]

約数ペア:

[(1, 20645888), (2, 10322944), (4, 5161472), (8, 2580736), (16, 1290368), (17, 1214464), (32, 645184), (34, 607232), (64, 322592), (68, 303616), (128, 161296), (136, 151808), (256, 80648), (272, 75904), (512, 40324), (544, 37952), (593, 34816), (1024, 20162), (1088, 18976), (1186, 17408), (2048, 10081), (2176, 9488), (2372, 8704), (4352, 4744)]