19813428

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:461

約数の個数: 72

約数和(自身を含む): 53508000

約数和(自身を除く): 33694572

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 83, 114, 166, 171, 228, 249, 332, 342, 349, 498, 684, 698, 747, 996, 1047, 1396, 1494, 1577, 2094, 2988, 3141, 3154, 4188, 4731, 6282, 6308, 6631, 9462, 12564, 13262, 14193, 18924, 19893, 26524, 28386, 28967, 39786, 56772, 57934, 59679, 79572, 86901, 115868, 119358, 173802, 238716, 260703, 347604, 521406, 550373, 1042812, 1100746, 1651119, 2201492, 3302238, 4953357, 6604476, 9906714, 19813428]

約数ペア:

[(1, 19813428), (2, 9906714), (3, 6604476), (4, 4953357), (6, 3302238), (9, 2201492), (12, 1651119), (18, 1100746), (19, 1042812), (36, 550373), (38, 521406), (57, 347604), (76, 260703), (83, 238716), (114, 173802), (166, 119358), (171, 115868), (228, 86901), (249, 79572), (332, 59679), (342, 57934), (349, 56772), (498, 39786), (684, 28967), (698, 28386), (747, 26524), (996, 19893), (1047, 18924), (1396, 14193), (1494, 13262), (1577, 12564), (2094, 9462), (2988, 6631), (3141, 6308), (3154, 6282), (4188, 4731)]