19677746

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:159

約数の個数: 48

約数和(自身を含む): 34831104

約数和(自身を除く): 15153358

約数列:

[1, 2, 11, 22, 31, 43, 61, 62, 86, 121, 122, 242, 341, 473, 671, 682, 946, 1333, 1342, 1891, 2623, 2666, 3751, 3782, 5203, 5246, 7381, 7502, 10406, 14663, 14762, 20801, 28853, 29326, 41602, 57706, 81313, 161293, 162626, 228811, 317383, 322586, 457622, 634766, 894443, 1788886, 9838873, 19677746]

約数ペア:

[(1, 19677746), (2, 9838873), (11, 1788886), (22, 894443), (31, 634766), (43, 457622), (61, 322586), (62, 317383), (86, 228811), (121, 162626), (122, 161293), (242, 81313), (341, 57706), (473, 41602), (671, 29326), (682, 28853), (946, 20801), (1333, 14762), (1342, 14663), (1891, 10406), (2623, 7502), (2666, 7381), (3751, 5246), (3782, 5203)]