21004979658

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{1175959}}^1$

素因数の和:1176206

約数の個数: 32

約数和(自身を含む): 45439094400

約数和(自身を除く): 24434114742

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 229, 458, 687, 1374, 2977, 5954, 8931, 17862, 1175959, 2351918, 3527877, 7055754, 15287467, 30574934, 45862401, 91724802, 269294611, 538589222, 807883833, 1615767666, 3500829943, 7001659886, 10502489829, 21004979658]

約数ペア:

[(1, 21004979658), (2, 10502489829), (3, 7001659886), (6, 3500829943), (13, 1615767666), (26, 807883833), (39, 538589222), (78, 269294611), (229, 91724802), (458, 45862401), (687, 30574934), (1374, 15287467), (2977, 7055754), (5954, 3527877), (8931, 2351918), (17862, 1175959)]