20147740431

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{71861}}^1$

素因数の和:71976

約数の個数: 48

約数和(自身を含む): 33665909760

約数和(自身を除く): 13518169329

約数列:

[1, 3, 7, 13, 21, 39, 79, 91, 169, 237, 273, 507, 553, 1027, 1183, 1659, 3081, 3549, 7189, 13351, 21567, 40053, 71861, 93457, 215583, 280371, 503027, 934193, 1509081, 2802579, 5677019, 6539351, 12144509, 17031057, 19618053, 36433527, 39739133, 73801247, 85011563, 119217399, 221403741, 255034689, 516608729, 959416211, 1549826187, 2878248633, 6715913477, 20147740431]

約数ペア:

[(1, 20147740431), (3, 6715913477), (7, 2878248633), (13, 1549826187), (21, 959416211), (39, 516608729), (79, 255034689), (91, 221403741), (169, 119217399), (237, 85011563), (273, 73801247), (507, 39739133), (553, 36433527), (1027, 19618053), (1183, 17031057), (1659, 12144509), (3081, 6539351), (3549, 5677019), (7189, 2802579), (13351, 1509081), (21567, 934193), (40053, 503027), (71861, 280371), (93457, 215583)]