12987326

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 22256640

約数和(自身を除く): 9269314

約数列:

[1, 2, 11, 22, 31, 62, 137, 139, 274, 278, 341, 682, 1507, 1529, 3014, 3058, 4247, 4309, 8494, 8618, 19043, 38086, 46717, 47399, 93434, 94798, 209473, 418946, 590333, 1180666, 6493663, 12987326]

約数ペア:

[(1, 12987326), (2, 6493663), (11, 1180666), (22, 590333), (31, 418946), (62, 209473), (137, 94798), (139, 93434), (274, 47399), (278, 46717), (341, 38086), (682, 19043), (1507, 8618), (1529, 8494), (3014, 4309), (3058, 4247)]