21730688

素因数分解:

$2^7\times 7^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 50265600

約数和(自身を除く): 28534912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 79, 112, 128, 158, 224, 307, 316, 448, 553, 614, 632, 896, 1106, 1228, 1264, 2149, 2212, 2456, 2528, 4298, 4424, 4912, 5056, 8596, 8848, 9824, 10112, 17192, 17696, 19648, 24253, 34384, 35392, 39296, 48506, 68768, 70784, 97012, 137536, 169771, 194024, 275072, 339542, 388048, 679084, 776096, 1358168, 1552192, 2716336, 3104384, 5432672, 10865344, 21730688]

約数ペア:

[(1, 21730688), (2, 10865344), (4, 5432672), (7, 3104384), (8, 2716336), (14, 1552192), (16, 1358168), (28, 776096), (32, 679084), (56, 388048), (64, 339542), (79, 275072), (112, 194024), (128, 169771), (158, 137536), (224, 97012), (307, 70784), (316, 68768), (448, 48506), (553, 39296), (614, 35392), (632, 34384), (896, 24253), (1106, 19648), (1228, 17696), (1264, 17192), (2149, 10112), (2212, 9824), (2456, 8848), (2528, 8596), (4298, 5056), (4424, 4912)]