16981328

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:244

約数の個数: 80

約数和(自身を含む): 41247360

約数和(自身を除く): 24266032

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 107, 109, 112, 182, 208, 214, 218, 364, 428, 436, 728, 749, 763, 856, 872, 1391, 1417, 1456, 1498, 1526, 1712, 1744, 2782, 2834, 2996, 3052, 5564, 5668, 5992, 6104, 9737, 9919, 11128, 11336, 11663, 11984, 12208, 19474, 19838, 22256, 22672, 23326, 38948, 39676, 46652, 77896, 79352, 81641, 93304, 151619, 155792, 158704, 163282, 186608, 303238, 326564, 606476, 653128, 1061333, 1212952, 1306256, 2122666, 2425904, 4245332, 8490664, 16981328]

約数ペア:

[(1, 16981328), (2, 8490664), (4, 4245332), (7, 2425904), (8, 2122666), (13, 1306256), (14, 1212952), (16, 1061333), (26, 653128), (28, 606476), (52, 326564), (56, 303238), (91, 186608), (104, 163282), (107, 158704), (109, 155792), (112, 151619), (182, 93304), (208, 81641), (214, 79352), (218, 77896), (364, 46652), (428, 39676), (436, 38948), (728, 23326), (749, 22672), (763, 22256), (856, 19838), (872, 19474), (1391, 12208), (1417, 11984), (1456, 11663), (1498, 11336), (1526, 11128), (1712, 9919), (1744, 9737), (2782, 6104), (2834, 5992), (2996, 5668), (3052, 5564)]