20120457987

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{75377}}^1$

素因数の和:75632

約数の個数: 48

約数和(自身を含む): 35120117760

約数和(自身を除く): 14999659773

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 223, 399, 669, 1197, 1561, 2007, 4237, 4683, 12711, 14049, 29659, 38133, 75377, 88977, 226131, 266931, 527639, 678393, 1432163, 1582917, 4296489, 4748751, 10025141, 12889467, 16809071, 30075423, 50427213, 90226269, 117663497, 151281639, 319372349, 352990491, 958117047, 1058971473, 2235606443, 2874351141, 6706819329, 20120457987]

約数ペア:

[(1, 20120457987), (3, 6706819329), (7, 2874351141), (9, 2235606443), (19, 1058971473), (21, 958117047), (57, 352990491), (63, 319372349), (133, 151281639), (171, 117663497), (223, 90226269), (399, 50427213), (669, 30075423), (1197, 16809071), (1561, 12889467), (2007, 10025141), (4237, 4748751), (4683, 4296489), (12711, 1582917), (14049, 1432163), (29659, 678393), (38133, 527639), (75377, 266931), (88977, 226131)]