21361746

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{643}}^1$

素因数の和:775

約数の個数: 48

約数和(自身を含む): 50216544

約数和(自身を除く): 28854798

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 113, 147, 226, 294, 339, 643, 678, 791, 1286, 1582, 1929, 2373, 3858, 4501, 4746, 5537, 9002, 11074, 13503, 16611, 27006, 31507, 33222, 63014, 72659, 94521, 145318, 189042, 217977, 435954, 508613, 1017226, 1525839, 3051678, 3560291, 7120582, 10680873, 21361746]

約数ペア:

[(1, 21361746), (2, 10680873), (3, 7120582), (6, 3560291), (7, 3051678), (14, 1525839), (21, 1017226), (42, 508613), (49, 435954), (98, 217977), (113, 189042), (147, 145318), (226, 94521), (294, 72659), (339, 63014), (643, 33222), (678, 31507), (791, 27006), (1286, 16611), (1582, 13503), (1929, 11074), (2373, 9002), (3858, 5537), (4501, 4746)]