21173248

素因数分解:

$2^{10}\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:103

約数の個数: 88

約数和(自身を含む): 47162880

約数和(自身を除く): 25989632

約数列:

[1, 2, 4, 8, 16, 23, 29, 31, 32, 46, 58, 62, 64, 92, 116, 124, 128, 184, 232, 248, 256, 368, 464, 496, 512, 667, 713, 736, 899, 928, 992, 1024, 1334, 1426, 1472, 1798, 1856, 1984, 2668, 2852, 2944, 3596, 3712, 3968, 5336, 5704, 5888, 7192, 7424, 7936, 10672, 11408, 11776, 14384, 14848, 15872, 20677, 21344, 22816, 23552, 28768, 29696, 31744, 41354, 42688, 45632, 57536, 82708, 85376, 91264, 115072, 165416, 170752, 182528, 230144, 330832, 341504, 365056, 460288, 661664, 683008, 730112, 920576, 1323328, 2646656, 5293312, 10586624, 21173248]

約数ペア:

[(1, 21173248), (2, 10586624), (4, 5293312), (8, 2646656), (16, 1323328), (23, 920576), (29, 730112), (31, 683008), (32, 661664), (46, 460288), (58, 365056), (62, 341504), (64, 330832), (92, 230144), (116, 182528), (124, 170752), (128, 165416), (184, 115072), (232, 91264), (248, 85376), (256, 82708), (368, 57536), (464, 45632), (496, 42688), (512, 41354), (667, 31744), (713, 29696), (736, 28768), (899, 23552), (928, 22816), (992, 21344), (1024, 20677), (1334, 15872), (1426, 14848), (1472, 14384), (1798, 11776), (1856, 11408), (1984, 10672), (2668, 7936), (2852, 7424), (2944, 7192), (3596, 5888), (3712, 5704), (3968, 5336)]