31491226

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:574

約数の個数: 32

約数和(自身を含む): 53222400

約数和(自身を除く): 21731174

約数列:

[1, 2, 13, 26, 31, 62, 89, 178, 403, 439, 806, 878, 1157, 2314, 2759, 5518, 5707, 11414, 13609, 27218, 35867, 39071, 71734, 78142, 176917, 353834, 507923, 1015846, 1211201, 2422402, 15745613, 31491226]

約数ペア:

[(1, 31491226), (2, 15745613), (13, 2422402), (26, 1211201), (31, 1015846), (62, 507923), (89, 353834), (178, 176917), (403, 78142), (439, 71734), (806, 39071), (878, 35867), (1157, 27218), (2314, 13609), (2759, 11414), (5518, 5707)]