21071388

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{461}}^1$

素因数の和:774

約数の個数: 48

約数和(自身を含む): 53244576

約数和(自身を除く): 32173188

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 293, 461, 586, 879, 922, 1172, 1383, 1758, 1844, 2766, 3516, 3809, 5532, 5993, 7618, 11427, 11986, 15236, 17979, 22854, 23972, 35958, 45708, 71916, 135073, 270146, 405219, 540292, 810438, 1620876, 1755949, 3511898, 5267847, 7023796, 10535694, 21071388]

約数ペア:

[(1, 21071388), (2, 10535694), (3, 7023796), (4, 5267847), (6, 3511898), (12, 1755949), (13, 1620876), (26, 810438), (39, 540292), (52, 405219), (78, 270146), (156, 135073), (293, 71916), (461, 45708), (586, 35958), (879, 23972), (922, 22854), (1172, 17979), (1383, 15236), (1758, 11986), (1844, 11427), (2766, 7618), (3516, 5993), (3809, 5532)]