21551117984

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1\times {\mathrm{3547}}^1$

素因数の和:4030

約数の個数: 96

約数和(自身を含む): 47540872512

約数和(自身を除く): 25989754528

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 41, 44, 82, 88, 164, 176, 328, 352, 421, 451, 656, 842, 902, 1312, 1684, 1804, 3368, 3547, 3608, 4631, 6736, 7094, 7216, 9262, 13472, 14188, 14432, 17261, 18524, 28376, 34522, 37048, 39017, 56752, 69044, 74096, 78034, 113504, 138088, 145427, 148192, 156068, 189871, 276176, 290854, 312136, 379742, 552352, 581708, 624272, 759484, 1163416, 1248544, 1493287, 1518968, 1599697, 2326832, 2986574, 3037936, 3199394, 4653664, 5973148, 6075872, 6398788, 11946296, 12797576, 16426157, 23892592, 25595152, 32852314, 47785184, 51190304, 61224767, 65704628, 122449534, 131409256, 244899068, 262818512, 489798136, 525637024, 673472437, 979596272, 1346944874, 1959192544, 2693889748, 5387779496, 10775558992, 21551117984]

約数ペア:

[(1, 21551117984), (2, 10775558992), (4, 5387779496), (8, 2693889748), (11, 1959192544), (16, 1346944874), (22, 979596272), (32, 673472437), (41, 525637024), (44, 489798136), (82, 262818512), (88, 244899068), (164, 131409256), (176, 122449534), (328, 65704628), (352, 61224767), (421, 51190304), (451, 47785184), (656, 32852314), (842, 25595152), (902, 23892592), (1312, 16426157), (1684, 12797576), (1804, 11946296), (3368, 6398788), (3547, 6075872), (3608, 5973148), (4631, 4653664), (6736, 3199394), (7094, 3037936), (7216, 2986574), (9262, 2326832), (13472, 1599697), (14188, 1518968), (14432, 1493287), (17261, 1248544), (18524, 1163416), (28376, 759484), (34522, 624272), (37048, 581708), (39017, 552352), (56752, 379742), (69044, 312136), (74096, 290854), (78034, 276176), (113504, 189871), (138088, 156068), (145427, 148192)]