21255370556

素因数分解:

$2^2\times 7^1\times {\mathrm{167}}^1\times {\mathrm{1553}}^1\times {\mathrm{2927}}^1$

素因数の和:4658

約数の個数: 48

約数和(自身を含む): 42807453696

約数和(自身を除く): 21552083140

約数列:

[1, 2, 4, 7, 14, 28, 167, 334, 668, 1169, 1553, 2338, 2927, 3106, 4676, 5854, 6212, 10871, 11708, 20489, 21742, 40978, 43484, 81956, 259351, 488809, 518702, 977618, 1037404, 1815457, 1955236, 3421663, 3630914, 4545631, 6843326, 7261828, 9091262, 13686652, 18182524, 31819417, 63638834, 127277668, 759120377, 1518240754, 3036481508, 5313842639, 10627685278, 21255370556]

約数ペア:

[(1, 21255370556), (2, 10627685278), (4, 5313842639), (7, 3036481508), (14, 1518240754), (28, 759120377), (167, 127277668), (334, 63638834), (668, 31819417), (1169, 18182524), (1553, 13686652), (2338, 9091262), (2927, 7261828), (3106, 6843326), (4676, 4545631), (5854, 3630914), (6212, 3421663), (10871, 1955236), (11708, 1815457), (20489, 1037404), (21742, 977618), (40978, 518702), (43484, 488809), (81956, 259351)]