19990318

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{6659}}^1$

素因数の和:6759

約数の個数: 16

約数和(自身を含む): 31968000

約数和(自身を除く): 11977682

約数列:

[1, 2, 19, 38, 79, 158, 1501, 3002, 6659, 13318, 126521, 253042, 526061, 1052122, 9995159, 19990318]

約数ペア:

[(1, 19990318), (2, 9995159), (19, 1052122), (38, 526061), (79, 253042), (158, 126521), (1501, 13318), (3002, 6659)]