21348260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1697}}^1$

素因数の和:1760

約数の個数: 48

約数和(自身を含む): 48780144

約数和(自身を除く): 27431884

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 74, 85, 148, 170, 185, 340, 370, 629, 740, 1258, 1697, 2516, 3145, 3394, 6290, 6788, 8485, 12580, 16970, 28849, 33940, 57698, 62789, 115396, 125578, 144245, 251156, 288490, 313945, 576980, 627890, 1067413, 1255780, 2134826, 4269652, 5337065, 10674130, 21348260]

約数ペア:

[(1, 21348260), (2, 10674130), (4, 5337065), (5, 4269652), (10, 2134826), (17, 1255780), (20, 1067413), (34, 627890), (37, 576980), (68, 313945), (74, 288490), (85, 251156), (148, 144245), (170, 125578), (185, 115396), (340, 62789), (370, 57698), (629, 33940), (740, 28849), (1258, 16970), (1697, 12580), (2516, 8485), (3145, 6788), (3394, 6290)]