21772912180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{64037977}}^1$

素因数の和:64038003

約数の個数: 24

約数和(自身を含む): 48412711368

約数和(自身を除く): 26639799188

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 64037977, 128075954, 256151908, 320189885, 640379770, 1088645609, 1280759540, 2177291218, 4354582436, 5443228045, 10886456090, 21772912180]

約数ペア:

[(1, 21772912180), (2, 10886456090), (4, 5443228045), (5, 4354582436), (10, 2177291218), (17, 1280759540), (20, 1088645609), (34, 640379770), (68, 320189885), (85, 256151908), (170, 128075954), (340, 64037977)]