19910016

素因数分解:

$2^7\times 3^3\times 7^1\times {\mathrm{823}}^1$

素因数の和:853

約数の個数: 128

約数和(自身を含む): 67238400

約数和(自身を除く): 47328384

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 84, 96, 108, 112, 126, 128, 144, 168, 189, 192, 216, 224, 252, 288, 336, 378, 384, 432, 448, 504, 576, 672, 756, 823, 864, 896, 1008, 1152, 1344, 1512, 1646, 1728, 2016, 2469, 2688, 3024, 3292, 3456, 4032, 4938, 5761, 6048, 6584, 7407, 8064, 9876, 11522, 12096, 13168, 14814, 17283, 19752, 22221, 23044, 24192, 26336, 29628, 34566, 39504, 44442, 46088, 51849, 52672, 59256, 69132, 79008, 88884, 92176, 103698, 105344, 118512, 138264, 155547, 158016, 177768, 184352, 207396, 237024, 276528, 311094, 316032, 355536, 368704, 414792, 474048, 553056, 622188, 711072, 737408, 829584, 948096, 1106112, 1244376, 1422144, 1659168, 2212224, 2488752, 2844288, 3318336, 4977504, 6636672, 9955008, 19910016]

約数ペア:

[(1, 19910016), (2, 9955008), (3, 6636672), (4, 4977504), (6, 3318336), (7, 2844288), (8, 2488752), (9, 2212224), (12, 1659168), (14, 1422144), (16, 1244376), (18, 1106112), (21, 948096), (24, 829584), (27, 737408), (28, 711072), (32, 622188), (36, 553056), (42, 474048), (48, 414792), (54, 368704), (56, 355536), (63, 316032), (64, 311094), (72, 276528), (84, 237024), (96, 207396), (108, 184352), (112, 177768), (126, 158016), (128, 155547), (144, 138264), (168, 118512), (189, 105344), (192, 103698), (216, 92176), (224, 88884), (252, 79008), (288, 69132), (336, 59256), (378, 52672), (384, 51849), (432, 46088), (448, 44442), (504, 39504), (576, 34566), (672, 29628), (756, 26336), (823, 24192), (864, 23044), (896, 22221), (1008, 19752), (1152, 17283), (1344, 14814), (1512, 13168), (1646, 12096), (1728, 11522), (2016, 9876), (2469, 8064), (2688, 7407), (3024, 6584), (3292, 6048), (3456, 5761), (4032, 4938)]