21562112

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 144

約数和(自身を含む): 54942720

約数和(自身を除く): 33380608

約数列:

[1, 2, 4, 8, 11, 13, 16, 19, 22, 26, 31, 32, 38, 44, 52, 62, 64, 76, 88, 104, 124, 128, 143, 152, 176, 208, 209, 247, 248, 256, 286, 304, 341, 352, 403, 416, 418, 494, 496, 572, 589, 608, 682, 704, 806, 832, 836, 988, 992, 1144, 1178, 1216, 1364, 1408, 1612, 1664, 1672, 1976, 1984, 2288, 2356, 2432, 2717, 2728, 2816, 3224, 3328, 3344, 3952, 3968, 4433, 4576, 4712, 4864, 5434, 5456, 6448, 6479, 6688, 7657, 7904, 7936, 8866, 9152, 9424, 10868, 10912, 12896, 12958, 13376, 15314, 15808, 17732, 18304, 18848, 21736, 21824, 25792, 25916, 26752, 30628, 31616, 35464, 36608, 37696, 43472, 43648, 51584, 51832, 53504, 61256, 63232, 70928, 75392, 84227, 86944, 87296, 103168, 103664, 122512, 141856, 150784, 168454, 173888, 207328, 245024, 283712, 336908, 347776, 414656, 490048, 567424, 673816, 695552, 829312, 980096, 1134848, 1347632, 1658624, 1960192, 2695264, 5390528, 10781056, 21562112]

約数ペア:

[(1, 21562112), (2, 10781056), (4, 5390528), (8, 2695264), (11, 1960192), (13, 1658624), (16, 1347632), (19, 1134848), (22, 980096), (26, 829312), (31, 695552), (32, 673816), (38, 567424), (44, 490048), (52, 414656), (62, 347776), (64, 336908), (76, 283712), (88, 245024), (104, 207328), (124, 173888), (128, 168454), (143, 150784), (152, 141856), (176, 122512), (208, 103664), (209, 103168), (247, 87296), (248, 86944), (256, 84227), (286, 75392), (304, 70928), (341, 63232), (352, 61256), (403, 53504), (416, 51832), (418, 51584), (494, 43648), (496, 43472), (572, 37696), (589, 36608), (608, 35464), (682, 31616), (704, 30628), (806, 26752), (832, 25916), (836, 25792), (988, 21824), (992, 21736), (1144, 18848), (1178, 18304), (1216, 17732), (1364, 15808), (1408, 15314), (1612, 13376), (1664, 12958), (1672, 12896), (1976, 10912), (1984, 10868), (2288, 9424), (2356, 9152), (2432, 8866), (2717, 7936), (2728, 7904), (2816, 7657), (3224, 6688), (3328, 6479), (3344, 6448), (3952, 5456), (3968, 5434), (4433, 4864), (4576, 4712)]