19153970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 40061952

約数和(自身を除く): 20907982

約数列:

[1, 2, 5, 10, 11, 22, 31, 41, 55, 62, 82, 110, 137, 155, 205, 274, 310, 341, 410, 451, 682, 685, 902, 1271, 1370, 1507, 1705, 2255, 2542, 3014, 3410, 4247, 4510, 5617, 6355, 7535, 8494, 11234, 12710, 13981, 15070, 21235, 27962, 28085, 42470, 46717, 56170, 61787, 69905, 93434, 123574, 139810, 174127, 233585, 308935, 348254, 467170, 617870, 870635, 1741270, 1915397, 3830794, 9576985, 19153970]

約数ペア:

[(1, 19153970), (2, 9576985), (5, 3830794), (10, 1915397), (11, 1741270), (22, 870635), (31, 617870), (41, 467170), (55, 348254), (62, 308935), (82, 233585), (110, 174127), (137, 139810), (155, 123574), (205, 93434), (274, 69905), (310, 61787), (341, 56170), (410, 46717), (451, 42470), (682, 28085), (685, 27962), (902, 21235), (1271, 15070), (1370, 13981), (1507, 12710), (1705, 11234), (2255, 8494), (2542, 7535), (3014, 6355), (3410, 5617), (4247, 4510)]