21014528

素因数分解:

$2^{11}\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 43505280

約数和(自身を除く): 22490752

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 331, 496, 512, 662, 992, 1024, 1324, 1984, 2048, 2648, 3968, 5296, 7936, 10261, 10592, 15872, 20522, 21184, 31744, 41044, 42368, 63488, 82088, 84736, 164176, 169472, 328352, 338944, 656704, 677888, 1313408, 2626816, 5253632, 10507264, 21014528]

約数ペア:

[(1, 21014528), (2, 10507264), (4, 5253632), (8, 2626816), (16, 1313408), (31, 677888), (32, 656704), (62, 338944), (64, 328352), (124, 169472), (128, 164176), (248, 84736), (256, 82088), (331, 63488), (496, 42368), (512, 41044), (662, 31744), (992, 21184), (1024, 20522), (1324, 15872), (1984, 10592), (2048, 10261), (2648, 7936), (3968, 5296)]