21488530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{373}}^1\times {\mathrm{823}}^1$

素因数の和:1210

約数の個数: 32

約数和(自身を含む): 44377344

約数和(自身を除く): 22888814

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 373, 746, 823, 1646, 1865, 2611, 3730, 4115, 5222, 5761, 8230, 11522, 13055, 26110, 28805, 57610, 306979, 613958, 1534895, 2148853, 3069790, 4297706, 10744265, 21488530]

約数ペア:

[(1, 21488530), (2, 10744265), (5, 4297706), (7, 3069790), (10, 2148853), (14, 1534895), (35, 613958), (70, 306979), (373, 57610), (746, 28805), (823, 26110), (1646, 13055), (1865, 11522), (2611, 8230), (3730, 5761), (4115, 5222)]