21017952

素因数分解:

$2^5\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:225

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 45026208

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 23, 24, 32, 36, 38, 46, 48, 57, 69, 72, 76, 92, 96, 114, 138, 144, 152, 167, 171, 184, 207, 228, 276, 288, 304, 334, 342, 368, 414, 437, 456, 501, 552, 608, 668, 684, 736, 828, 874, 912, 1002, 1104, 1311, 1336, 1368, 1503, 1656, 1748, 1824, 2004, 2208, 2622, 2672, 2736, 3006, 3173, 3312, 3496, 3841, 3933, 4008, 5244, 5344, 5472, 6012, 6346, 6624, 6992, 7682, 7866, 8016, 9519, 10488, 11523, 12024, 12692, 13984, 15364, 15732, 16032, 19038, 20976, 23046, 24048, 25384, 28557, 30728, 31464, 34569, 38076, 41952, 46092, 48096, 50768, 57114, 61456, 62928, 69138, 72979, 76152, 92184, 101536, 114228, 122912, 125856, 138276, 145958, 152304, 184368, 218937, 228456, 276552, 291916, 304608, 368736, 437874, 456912, 553104, 583832, 656811, 875748, 913824, 1106208, 1167664, 1313622, 1751496, 2335328, 2627244, 3502992, 5254488, 7005984, 10508976, 21017952]

約数ペア:

[(1, 21017952), (2, 10508976), (3, 7005984), (4, 5254488), (6, 3502992), (8, 2627244), (9, 2335328), (12, 1751496), (16, 1313622), (18, 1167664), (19, 1106208), (23, 913824), (24, 875748), (32, 656811), (36, 583832), (38, 553104), (46, 456912), (48, 437874), (57, 368736), (69, 304608), (72, 291916), (76, 276552), (92, 228456), (96, 218937), (114, 184368), (138, 152304), (144, 145958), (152, 138276), (167, 125856), (171, 122912), (184, 114228), (207, 101536), (228, 92184), (276, 76152), (288, 72979), (304, 69138), (334, 62928), (342, 61456), (368, 57114), (414, 50768), (437, 48096), (456, 46092), (501, 41952), (552, 38076), (608, 34569), (668, 31464), (684, 30728), (736, 28557), (828, 25384), (874, 24048), (912, 23046), (1002, 20976), (1104, 19038), (1311, 16032), (1336, 15732), (1368, 15364), (1503, 13984), (1656, 12692), (1748, 12024), (1824, 11523), (2004, 10488), (2208, 9519), (2622, 8016), (2672, 7866), (2736, 7682), (3006, 6992), (3173, 6624), (3312, 6346), (3496, 6012), (3841, 5472), (3933, 5344), (4008, 5244)]