21681152

素因数分解:

$2^{10}\times {\mathrm{31}}^1\times {\mathrm{683}}^1$

素因数の和:734

約数の個数: 44

約数和(自身を含む): 44804736

約数和(自身を除く): 23123584

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 683, 992, 1024, 1366, 1984, 2732, 3968, 5464, 7936, 10928, 15872, 21173, 21856, 31744, 42346, 43712, 84692, 87424, 169384, 174848, 338768, 349696, 677536, 699392, 1355072, 2710144, 5420288, 10840576, 21681152]

約数ペア:

[(1, 21681152), (2, 10840576), (4, 5420288), (8, 2710144), (16, 1355072), (31, 699392), (32, 677536), (62, 349696), (64, 338768), (124, 174848), (128, 169384), (248, 87424), (256, 84692), (496, 43712), (512, 42346), (683, 31744), (992, 21856), (1024, 21173), (1366, 15872), (1984, 10928), (2732, 7936), (3968, 5464)]