21399408

素因数分解:

$2^4\times 3^2\times {\mathrm{173}}^1\times {\mathrm{859}}^1$

素因数の和:1046

約数の個数: 60

約数和(自身を含む): 60304920

約数和(自身を除く): 38905512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 173, 346, 519, 692, 859, 1038, 1384, 1557, 1718, 2076, 2577, 2768, 3114, 3436, 4152, 5154, 6228, 6872, 7731, 8304, 10308, 12456, 13744, 15462, 20616, 24912, 30924, 41232, 61848, 123696, 148607, 297214, 445821, 594428, 891642, 1188856, 1337463, 1783284, 2377712, 2674926, 3566568, 5349852, 7133136, 10699704, 21399408]

約数ペア:

[(1, 21399408), (2, 10699704), (3, 7133136), (4, 5349852), (6, 3566568), (8, 2674926), (9, 2377712), (12, 1783284), (16, 1337463), (18, 1188856), (24, 891642), (36, 594428), (48, 445821), (72, 297214), (144, 148607), (173, 123696), (346, 61848), (519, 41232), (692, 30924), (859, 24912), (1038, 20616), (1384, 15462), (1557, 13744), (1718, 12456), (2076, 10308), (2577, 8304), (2768, 7731), (3114, 6872), (3436, 6228), (4152, 5154)]