20163893498

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{509}}^1\times {\mathrm{20357}}^1$

素因数の和:21014

約数の個数: 32

約数和(自身を含む): 34885468800

約数和(自身を除く): 14721575302

約数列:

[1, 2, 7, 14, 139, 278, 509, 973, 1018, 1946, 3563, 7126, 20357, 40714, 70751, 141502, 142499, 284998, 495257, 990514, 2829623, 5659246, 10361713, 19807361, 20723426, 39614722, 72531991, 145063982, 1440278107, 2880556214, 10081946749, 20163893498]

約数ペア:

[(1, 20163893498), (2, 10081946749), (7, 2880556214), (14, 1440278107), (139, 145063982), (278, 72531991), (509, 39614722), (973, 20723426), (1018, 19807361), (1946, 10361713), (3563, 5659246), (7126, 2829623), (20357, 990514), (40714, 495257), (70751, 284998), (141502, 142499)]