20347772

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{281}}^1\times {\mathrm{421}}^1$

素因数の和:749

約数の個数: 24

約数和(自身を含む): 36653232

約数和(自身を除く): 16305460

約数列:

[1, 2, 4, 43, 86, 172, 281, 421, 562, 842, 1124, 1684, 12083, 18103, 24166, 36206, 48332, 72412, 118301, 236602, 473204, 5086943, 10173886, 20347772]

約数ペア:

[(1, 20347772), (2, 10173886), (4, 5086943), (43, 473204), (86, 236602), (172, 118301), (281, 72412), (421, 48332), (562, 36206), (842, 24166), (1124, 18103), (1684, 12083)]