16381827

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{307}}^1$

素因数の和:349

約数の個数: 54

約数和(自身を含む): 30354324

約数和(自身を除く): 13972497

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 121, 147, 231, 307, 363, 441, 539, 693, 847, 921, 1089, 1617, 2149, 2541, 2763, 3377, 4851, 5929, 6447, 7623, 10131, 15043, 17787, 19341, 23639, 30393, 37147, 45129, 53361, 70917, 111441, 135387, 165473, 212751, 260029, 334323, 496419, 780087, 1489257, 1820203, 2340261, 5460609, 16381827]

約数ペア:

[(1, 16381827), (3, 5460609), (7, 2340261), (9, 1820203), (11, 1489257), (21, 780087), (33, 496419), (49, 334323), (63, 260029), (77, 212751), (99, 165473), (121, 135387), (147, 111441), (231, 70917), (307, 53361), (363, 45129), (441, 37147), (539, 30393), (693, 23639), (847, 19341), (921, 17787), (1089, 15043), (1617, 10131), (2149, 7623), (2541, 6447), (2763, 5929), (3377, 4851)]