18933424

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1021}}^1$

素因数の和:1109

約数の個数: 40

約数和(自身を含む): 39285680

約数和(自身を除く): 20352256

約数列:

[1, 2, 4, 8, 16, 19, 38, 61, 76, 122, 152, 244, 304, 488, 976, 1021, 1159, 2042, 2318, 4084, 4636, 8168, 9272, 16336, 18544, 19399, 38798, 62281, 77596, 124562, 155192, 249124, 310384, 498248, 996496, 1183339, 2366678, 4733356, 9466712, 18933424]

約数ペア:

[(1, 18933424), (2, 9466712), (4, 4733356), (8, 2366678), (16, 1183339), (19, 996496), (38, 498248), (61, 310384), (76, 249124), (122, 155192), (152, 124562), (244, 77596), (304, 62281), (488, 38798), (976, 19399), (1021, 18544), (1159, 16336), (2042, 9272), (2318, 8168), (4084, 4636)]