21663648

素因数分解:

$2^5\times 3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:179

約数の個数: 144

約数和(自身を含む): 67223520

約数和(自身を除く): 45559872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 32, 36, 37, 38, 48, 57, 72, 74, 76, 96, 107, 111, 114, 144, 148, 152, 171, 214, 222, 228, 288, 296, 304, 321, 333, 342, 428, 444, 456, 592, 608, 642, 666, 684, 703, 856, 888, 912, 963, 1184, 1284, 1332, 1368, 1406, 1712, 1776, 1824, 1926, 2033, 2109, 2568, 2664, 2736, 2812, 3424, 3552, 3852, 3959, 4066, 4218, 5136, 5328, 5472, 5624, 6099, 6327, 7704, 7918, 8132, 8436, 10272, 10656, 11248, 11877, 12198, 12654, 15408, 15836, 16264, 16872, 18297, 22496, 23754, 24396, 25308, 30816, 31672, 32528, 33744, 35631, 36594, 47508, 48792, 50616, 63344, 65056, 67488, 71262, 73188, 75221, 95016, 97584, 101232, 126688, 142524, 146376, 150442, 190032, 195168, 202464, 225663, 285048, 292752, 300884, 380064, 451326, 570096, 585504, 601768, 676989, 902652, 1140192, 1203536, 1353978, 1805304, 2407072, 2707956, 3610608, 5415912, 7221216, 10831824, 21663648]

約数ペア:

[(1, 21663648), (2, 10831824), (3, 7221216), (4, 5415912), (6, 3610608), (8, 2707956), (9, 2407072), (12, 1805304), (16, 1353978), (18, 1203536), (19, 1140192), (24, 902652), (32, 676989), (36, 601768), (37, 585504), (38, 570096), (48, 451326), (57, 380064), (72, 300884), (74, 292752), (76, 285048), (96, 225663), (107, 202464), (111, 195168), (114, 190032), (144, 150442), (148, 146376), (152, 142524), (171, 126688), (214, 101232), (222, 97584), (228, 95016), (288, 75221), (296, 73188), (304, 71262), (321, 67488), (333, 65056), (342, 63344), (428, 50616), (444, 48792), (456, 47508), (592, 36594), (608, 35631), (642, 33744), (666, 32528), (684, 31672), (703, 30816), (856, 25308), (888, 24396), (912, 23754), (963, 22496), (1184, 18297), (1284, 16872), (1332, 16264), (1368, 15836), (1406, 15408), (1712, 12654), (1776, 12198), (1824, 11877), (1926, 11248), (2033, 10656), (2109, 10272), (2568, 8436), (2664, 8132), (2736, 7918), (2812, 7704), (3424, 6327), (3552, 6099), (3852, 5624), (3959, 5472), (4066, 5328), (4218, 5136)]