21255408

素因数分解:

$2^4\times 3^2\times {\mathrm{147607}}^1$

素因数の和:147621

約数の個数: 30

約数和(自身を含む): 59486024

約数和(自身を除く): 38230616

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 147607, 295214, 442821, 590428, 885642, 1180856, 1328463, 1771284, 2361712, 2656926, 3542568, 5313852, 7085136, 10627704, 21255408]

約数ペア:

[(1, 21255408), (2, 10627704), (3, 7085136), (4, 5313852), (6, 3542568), (8, 2656926), (9, 2361712), (12, 1771284), (16, 1328463), (18, 1180856), (24, 885642), (36, 590428), (48, 442821), (72, 295214), (144, 147607)]