19722976

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^2\times {\mathrm{521}}^1$

素因数の和:564

約数の個数: 72

約数和(自身を含む): 48145104

約数和(自身を除く): 28422128

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 169, 182, 208, 224, 338, 364, 416, 521, 676, 728, 1042, 1183, 1352, 1456, 2084, 2366, 2704, 2912, 3647, 4168, 4732, 5408, 6773, 7294, 8336, 9464, 13546, 14588, 16672, 18928, 27092, 29176, 37856, 47411, 54184, 58352, 88049, 94822, 108368, 116704, 176098, 189644, 216736, 352196, 379288, 616343, 704392, 758576, 1232686, 1408784, 1517152, 2465372, 2817568, 4930744, 9861488, 19722976]

約数ペア:

[(1, 19722976), (2, 9861488), (4, 4930744), (7, 2817568), (8, 2465372), (13, 1517152), (14, 1408784), (16, 1232686), (26, 758576), (28, 704392), (32, 616343), (52, 379288), (56, 352196), (91, 216736), (104, 189644), (112, 176098), (169, 116704), (182, 108368), (208, 94822), (224, 88049), (338, 58352), (364, 54184), (416, 47411), (521, 37856), (676, 29176), (728, 27092), (1042, 18928), (1183, 16672), (1352, 14588), (1456, 13546), (2084, 9464), (2366, 8336), (2704, 7294), (2912, 6773), (3647, 5408), (4168, 4732)]