19561638

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{619}}^1$

素因数の和:876

約数の個数: 32

約数和(自身を含む): 41068800

約数和(自身を除く): 21507162

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 229, 458, 619, 687, 1238, 1374, 1857, 3714, 5267, 10534, 14237, 15801, 28474, 31602, 42711, 85422, 141751, 283502, 425253, 850506, 3260273, 6520546, 9780819, 19561638]

約数ペア:

[(1, 19561638), (2, 9780819), (3, 6520546), (6, 3260273), (23, 850506), (46, 425253), (69, 283502), (138, 141751), (229, 85422), (458, 42711), (619, 31602), (687, 28474), (1238, 15801), (1374, 14237), (1857, 10534), (3714, 5267)]