21087632

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:423

約数の個数: 40

約数和(自身を含む): 42408000

約数和(自身を除く): 21320368

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 179, 199, 296, 358, 398, 592, 716, 796, 1432, 1592, 2864, 3184, 6623, 7363, 13246, 14726, 26492, 29452, 35621, 52984, 58904, 71242, 105968, 117808, 142484, 284968, 569936, 1317977, 2635954, 5271908, 10543816, 21087632]

約数ペア:

[(1, 21087632), (2, 10543816), (4, 5271908), (8, 2635954), (16, 1317977), (37, 569936), (74, 284968), (148, 142484), (179, 117808), (199, 105968), (296, 71242), (358, 58904), (398, 52984), (592, 35621), (716, 29452), (796, 26492), (1432, 14726), (1592, 13246), (2864, 7363), (3184, 6623)]