28789509

素因数分解:

$3^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{1297}}^1$

素因数の和:1465

約数の個数: 24

約数和(自身を含む): 44983488

約数和(自身を除く): 16193979

約数列:

[1, 3, 7, 21, 49, 147, 151, 453, 1057, 1297, 3171, 3891, 7399, 9079, 22197, 27237, 63553, 190659, 195847, 587541, 1370929, 4112787, 9596503, 28789509]

約数ペア:

[(1, 28789509), (3, 9596503), (7, 4112787), (21, 1370929), (49, 587541), (147, 195847), (151, 190659), (453, 63553), (1057, 27237), (1297, 22197), (3171, 9079), (3891, 7399)]