18806956

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{461}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 39739392

約数和(自身を除く): 20932436

約数列:

[1, 2, 4, 7, 14, 28, 31, 47, 62, 94, 124, 188, 217, 329, 434, 461, 658, 868, 922, 1316, 1457, 1844, 2914, 3227, 5828, 6454, 10199, 12908, 14291, 20398, 21667, 28582, 40796, 43334, 57164, 86668, 100037, 151669, 200074, 303338, 400148, 606676, 671677, 1343354, 2686708, 4701739, 9403478, 18806956]

約数ペア:

[(1, 18806956), (2, 9403478), (4, 4701739), (7, 2686708), (14, 1343354), (28, 671677), (31, 606676), (47, 400148), (62, 303338), (94, 200074), (124, 151669), (188, 100037), (217, 86668), (329, 57164), (434, 43334), (461, 40796), (658, 28582), (868, 21667), (922, 20398), (1316, 14291), (1457, 12908), (1844, 10199), (2914, 6454), (3227, 5828)]