20972328

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67219}}^1$

素因数の和:67241

約数の個数: 32

約数和(自身を含む): 56464800

約数和(自身を除く): 35492472

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67219, 134438, 201657, 268876, 403314, 537752, 806628, 873847, 1613256, 1747694, 2621541, 3495388, 5243082, 6990776, 10486164, 20972328]

約数ペア:

[(1, 20972328), (2, 10486164), (3, 6990776), (4, 5243082), (6, 3495388), (8, 2621541), (12, 1747694), (13, 1613256), (24, 873847), (26, 806628), (39, 537752), (52, 403314), (78, 268876), (104, 201657), (156, 134438), (312, 67219)]