21739396

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{419}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 46569600

約数和(自身を除く): 24830204

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 109, 119, 218, 238, 419, 436, 476, 763, 838, 1526, 1676, 1853, 2933, 3052, 3706, 5866, 7123, 7412, 11732, 12971, 14246, 25942, 28492, 45671, 49861, 51884, 91342, 99722, 182684, 199444, 319697, 639394, 776407, 1278788, 1552814, 3105628, 5434849, 10869698, 21739396]

約数ペア:

[(1, 21739396), (2, 10869698), (4, 5434849), (7, 3105628), (14, 1552814), (17, 1278788), (28, 776407), (34, 639394), (68, 319697), (109, 199444), (119, 182684), (218, 99722), (238, 91342), (419, 51884), (436, 49861), (476, 45671), (763, 28492), (838, 25942), (1526, 14246), (1676, 12971), (1853, 11732), (2933, 7412), (3052, 7123), (3706, 5866)]