217871948

素因数分解:

$2^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{77041}}^1$

素因数の和:77153

約数の個数: 24

約数和(自身を含む): 440063904

約数和(自身を除く): 222191956

約数列:

[1, 2, 4, 7, 14, 28, 101, 202, 404, 707, 1414, 2828, 77041, 154082, 308164, 539287, 1078574, 2157148, 7781141, 15562282, 31124564, 54467987, 108935974, 217871948]

約数ペア:

[(1, 217871948), (2, 108935974), (4, 54467987), (7, 31124564), (14, 15562282), (28, 7781141), (101, 2157148), (202, 1078574), (404, 539287), (707, 308164), (1414, 154082), (2828, 77041)]