20843456

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:373

約数の個数: 56

約数和(自身を含む): 44409360

約数和(自身を除く): 23565904

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 61, 64, 76, 122, 152, 244, 281, 304, 488, 562, 608, 976, 1124, 1159, 1216, 1952, 2248, 2318, 3904, 4496, 4636, 5339, 8992, 9272, 10678, 17141, 17984, 18544, 21356, 34282, 37088, 42712, 68564, 74176, 85424, 137128, 170848, 274256, 325679, 341696, 548512, 651358, 1097024, 1302716, 2605432, 5210864, 10421728, 20843456]

約数ペア:

[(1, 20843456), (2, 10421728), (4, 5210864), (8, 2605432), (16, 1302716), (19, 1097024), (32, 651358), (38, 548512), (61, 341696), (64, 325679), (76, 274256), (122, 170848), (152, 137128), (244, 85424), (281, 74176), (304, 68564), (488, 42712), (562, 37088), (608, 34282), (976, 21356), (1124, 18544), (1159, 17984), (1216, 17141), (1952, 10678), (2248, 9272), (2318, 8992), (3904, 5339), (4496, 4636)]