21989422

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6359}}^1$

素因数の和:6400

約数の個数: 32

約数和(自身を含む): 42739200

約数和(自身を除く): 20749778

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 1729, 3458, 6359, 12718, 44513, 82667, 89026, 120821, 165334, 241642, 578669, 845747, 1157338, 1570673, 1691494, 3141346, 10994711, 21989422]

約数ペア:

[(1, 21989422), (2, 10994711), (7, 3141346), (13, 1691494), (14, 1570673), (19, 1157338), (26, 845747), (38, 578669), (91, 241642), (133, 165334), (182, 120821), (247, 89026), (266, 82667), (494, 44513), (1729, 12718), (3458, 6359)]