21239568

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1109}}^1$

素因数の和:1149

約数の個数: 120

約数和(自身を含む): 71572800

約数和(自身を除く): 50333232

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 28, 36, 38, 42, 48, 56, 57, 63, 72, 76, 84, 112, 114, 126, 133, 144, 152, 168, 171, 228, 252, 266, 304, 336, 342, 399, 456, 504, 532, 684, 798, 912, 1008, 1064, 1109, 1197, 1368, 1596, 2128, 2218, 2394, 2736, 3192, 3327, 4436, 4788, 6384, 6654, 7763, 8872, 9576, 9981, 13308, 15526, 17744, 19152, 19962, 21071, 23289, 26616, 31052, 39924, 42142, 46578, 53232, 62104, 63213, 69867, 79848, 84284, 93156, 124208, 126426, 139734, 147497, 159696, 168568, 186312, 189639, 252852, 279468, 294994, 337136, 372624, 379278, 442491, 505704, 558936, 589988, 758556, 884982, 1011408, 1117872, 1179976, 1327473, 1517112, 1769964, 2359952, 2654946, 3034224, 3539928, 5309892, 7079856, 10619784, 21239568]

約数ペア:

[(1, 21239568), (2, 10619784), (3, 7079856), (4, 5309892), (6, 3539928), (7, 3034224), (8, 2654946), (9, 2359952), (12, 1769964), (14, 1517112), (16, 1327473), (18, 1179976), (19, 1117872), (21, 1011408), (24, 884982), (28, 758556), (36, 589988), (38, 558936), (42, 505704), (48, 442491), (56, 379278), (57, 372624), (63, 337136), (72, 294994), (76, 279468), (84, 252852), (112, 189639), (114, 186312), (126, 168568), (133, 159696), (144, 147497), (152, 139734), (168, 126426), (171, 124208), (228, 93156), (252, 84284), (266, 79848), (304, 69867), (336, 63213), (342, 62104), (399, 53232), (456, 46578), (504, 42142), (532, 39924), (684, 31052), (798, 26616), (912, 23289), (1008, 21071), (1064, 19962), (1109, 19152), (1197, 17744), (1368, 15526), (1596, 13308), (2128, 9981), (2218, 9576), (2394, 8872), (2736, 7763), (3192, 6654), (3327, 6384), (4436, 4788)]