18938270403

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{242677}}^1$

素因数の和:242748

約数の個数: 48

約数和(自身を含む): 31800525120

約数和(自身を除く): 12862254717

約数列:

[1, 3, 9, 13, 23, 29, 39, 69, 87, 117, 207, 261, 299, 377, 667, 897, 1131, 2001, 2691, 3393, 6003, 8671, 26013, 78039, 242677, 728031, 2184093, 3154801, 5581571, 7037633, 9464403, 16744713, 21112899, 28393209, 50234139, 63338697, 72560423, 91489229, 161865559, 217681269, 274467687, 485596677, 653043807, 823403061, 1456790031, 2104252267, 6312756801, 18938270403]

約数ペア:

[(1, 18938270403), (3, 6312756801), (9, 2104252267), (13, 1456790031), (23, 823403061), (29, 653043807), (39, 485596677), (69, 274467687), (87, 217681269), (117, 161865559), (207, 91489229), (261, 72560423), (299, 63338697), (377, 50234139), (667, 28393209), (897, 21112899), (1131, 16744713), (2001, 9464403), (2691, 7037633), (3393, 5581571), (6003, 3154801), (8671, 2184093), (26013, 728031), (78039, 242677)]