20287638

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{191}}^1\times {\mathrm{281}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 51978240

約数和(自身を除く): 31690602

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 191, 281, 378, 382, 562, 573, 843, 1146, 1337, 1686, 1719, 1967, 2529, 2674, 3438, 3934, 4011, 5058, 5157, 5901, 7587, 8022, 10314, 11802, 12033, 15174, 17703, 24066, 35406, 36099, 53109, 53671, 72198, 106218, 107342, 161013, 322026, 375697, 483039, 751394, 966078, 1127091, 1449117, 2254182, 2898234, 3381273, 6762546, 10143819, 20287638]

約数ペア:

[(1, 20287638), (2, 10143819), (3, 6762546), (6, 3381273), (7, 2898234), (9, 2254182), (14, 1449117), (18, 1127091), (21, 966078), (27, 751394), (42, 483039), (54, 375697), (63, 322026), (126, 161013), (189, 107342), (191, 106218), (281, 72198), (378, 53671), (382, 53109), (562, 36099), (573, 35406), (843, 24066), (1146, 17703), (1337, 15174), (1686, 12033), (1719, 11802), (1967, 10314), (2529, 8022), (2674, 7587), (3438, 5901), (3934, 5157), (4011, 5058)]