20577676

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 43036672

約数和(自身を除く): 22458996

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 151, 157, 217, 302, 314, 434, 604, 628, 868, 1057, 1099, 2114, 2198, 4228, 4396, 4681, 4867, 9362, 9734, 18724, 19468, 23707, 32767, 34069, 47414, 65534, 68138, 94828, 131068, 136276, 165949, 331898, 663796, 734917, 1469834, 2939668, 5144419, 10288838, 20577676]

約数ペア:

[(1, 20577676), (2, 10288838), (4, 5144419), (7, 2939668), (14, 1469834), (28, 734917), (31, 663796), (62, 331898), (124, 165949), (151, 136276), (157, 131068), (217, 94828), (302, 68138), (314, 65534), (434, 47414), (604, 34069), (628, 32767), (868, 23707), (1057, 19468), (1099, 18724), (2114, 9734), (2198, 9362), (4228, 4867), (4396, 4681)]