19295556

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^2$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 53833920

約数和(自身を除く): 34538364

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 29, 42, 58, 84, 87, 89, 116, 174, 178, 203, 267, 348, 356, 406, 534, 609, 623, 812, 1068, 1218, 1246, 1869, 2436, 2492, 2581, 3738, 5162, 7476, 7743, 7921, 10324, 15486, 15842, 18067, 23763, 30972, 31684, 36134, 47526, 54201, 55447, 72268, 95052, 108402, 110894, 166341, 216804, 221788, 229709, 332682, 459418, 665364, 689127, 918836, 1378254, 1607963, 2756508, 3215926, 4823889, 6431852, 9647778, 19295556]

約数ペア:

[(1, 19295556), (2, 9647778), (3, 6431852), (4, 4823889), (6, 3215926), (7, 2756508), (12, 1607963), (14, 1378254), (21, 918836), (28, 689127), (29, 665364), (42, 459418), (58, 332682), (84, 229709), (87, 221788), (89, 216804), (116, 166341), (174, 110894), (178, 108402), (203, 95052), (267, 72268), (348, 55447), (356, 54201), (406, 47526), (534, 36134), (609, 31684), (623, 30972), (812, 23763), (1068, 18067), (1218, 15842), (1246, 15486), (1869, 10324), (2436, 7921), (2492, 7743), (2581, 7476), (3738, 5162)]