19689572

素因数分解:

$2^2\times 7^3\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 40857600

約数和(自身を除く): 21168028

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 113, 127, 196, 226, 254, 343, 452, 508, 686, 791, 889, 1372, 1582, 1778, 3164, 3556, 5537, 6223, 11074, 12446, 14351, 22148, 24892, 28702, 38759, 43561, 57404, 77518, 87122, 100457, 155036, 174244, 200914, 401828, 703199, 1406398, 2812796, 4922393, 9844786, 19689572]

約数ペア:

[(1, 19689572), (2, 9844786), (4, 4922393), (7, 2812796), (14, 1406398), (28, 703199), (49, 401828), (98, 200914), (113, 174244), (127, 155036), (196, 100457), (226, 87122), (254, 77518), (343, 57404), (452, 43561), (508, 38759), (686, 28702), (791, 24892), (889, 22148), (1372, 14351), (1582, 12446), (1778, 11074), (3164, 6223), (3556, 5537)]