17881318

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5171}}^1$

素因数の和:5212

約数の個数: 32

約数和(自身を含む): 34755840

約数和(自身を除く): 16874522

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 1729, 3458, 5171, 10342, 36197, 67223, 72394, 98249, 134446, 196498, 470561, 687743, 941122, 1277237, 1375486, 2554474, 8940659, 17881318]

約数ペア:

[(1, 17881318), (2, 8940659), (7, 2554474), (13, 1375486), (14, 1277237), (19, 941122), (26, 687743), (38, 470561), (91, 196498), (133, 134446), (182, 98249), (247, 72394), (266, 67223), (494, 36197), (1729, 10342), (3458, 5171)]