20840036

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{911}}^1$

素因数の和:984

約数の個数: 48

約数和(自身を含む): 44943360

約数和(自身を除く): 24103324

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 43, 76, 86, 133, 172, 266, 301, 532, 602, 817, 911, 1204, 1634, 1822, 3268, 3644, 5719, 6377, 11438, 12754, 17309, 22876, 25508, 34618, 39173, 69236, 78346, 121163, 156692, 242326, 274211, 484652, 548422, 744287, 1096844, 1488574, 2977148, 5210009, 10420018, 20840036]

約数ペア:

[(1, 20840036), (2, 10420018), (4, 5210009), (7, 2977148), (14, 1488574), (19, 1096844), (28, 744287), (38, 548422), (43, 484652), (76, 274211), (86, 242326), (133, 156692), (172, 121163), (266, 78346), (301, 69236), (532, 39173), (602, 34618), (817, 25508), (911, 22876), (1204, 17309), (1634, 12754), (1822, 11438), (3268, 6377), (3644, 5719)]