21345422

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{359}}^1$

素因数の和:536

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 16808818

約数列:

[1, 2, 7, 14, 31, 62, 137, 217, 274, 359, 434, 718, 959, 1918, 2513, 4247, 5026, 8494, 11129, 22258, 29729, 49183, 59458, 77903, 98366, 155806, 344281, 688562, 1524673, 3049346, 10672711, 21345422]

約数ペア:

[(1, 21345422), (2, 10672711), (7, 3049346), (14, 1524673), (31, 688562), (62, 344281), (137, 155806), (217, 98366), (274, 77903), (359, 59458), (434, 49183), (718, 29729), (959, 22258), (1918, 11129), (2513, 8494), (4247, 5026)]