21408768

素因数分解:

$2^{10}\times 3^2\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:150

約数の個数: 132

約数和(自身を含む): 65143728

約数和(自身を除く): 43734960

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 46, 48, 64, 69, 72, 92, 96, 101, 128, 138, 144, 184, 192, 202, 207, 256, 276, 288, 303, 368, 384, 404, 414, 512, 552, 576, 606, 736, 768, 808, 828, 909, 1024, 1104, 1152, 1212, 1472, 1536, 1616, 1656, 1818, 2208, 2304, 2323, 2424, 2944, 3072, 3232, 3312, 3636, 4416, 4608, 4646, 4848, 5888, 6464, 6624, 6969, 7272, 8832, 9216, 9292, 9696, 11776, 12928, 13248, 13938, 14544, 17664, 18584, 19392, 20907, 23552, 25856, 26496, 27876, 29088, 35328, 37168, 38784, 41814, 51712, 52992, 55752, 58176, 70656, 74336, 77568, 83628, 103424, 105984, 111504, 116352, 148672, 155136, 167256, 211968, 223008, 232704, 297344, 310272, 334512, 446016, 465408, 594688, 669024, 892032, 930816, 1189376, 1338048, 1784064, 2378752, 2676096, 3568128, 5352192, 7136256, 10704384, 21408768]

約数ペア:

[(1, 21408768), (2, 10704384), (3, 7136256), (4, 5352192), (6, 3568128), (8, 2676096), (9, 2378752), (12, 1784064), (16, 1338048), (18, 1189376), (23, 930816), (24, 892032), (32, 669024), (36, 594688), (46, 465408), (48, 446016), (64, 334512), (69, 310272), (72, 297344), (92, 232704), (96, 223008), (101, 211968), (128, 167256), (138, 155136), (144, 148672), (184, 116352), (192, 111504), (202, 105984), (207, 103424), (256, 83628), (276, 77568), (288, 74336), (303, 70656), (368, 58176), (384, 55752), (404, 52992), (414, 51712), (512, 41814), (552, 38784), (576, 37168), (606, 35328), (736, 29088), (768, 27876), (808, 26496), (828, 25856), (909, 23552), (1024, 20907), (1104, 19392), (1152, 18584), (1212, 17664), (1472, 14544), (1536, 13938), (1616, 13248), (1656, 12928), (1818, 11776), (2208, 9696), (2304, 9292), (2323, 9216), (2424, 8832), (2944, 7272), (3072, 6969), (3232, 6624), (3312, 6464), (3636, 5888), (4416, 4848), (4608, 4646)]