20868744

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{317}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 56629440

約数和(自身を除く): 35760696

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 211, 312, 317, 422, 633, 634, 844, 951, 1266, 1268, 1688, 1902, 2532, 2536, 2743, 3804, 4121, 5064, 5486, 7608, 8229, 8242, 10972, 12363, 16458, 16484, 21944, 24726, 32916, 32968, 49452, 65832, 66887, 98904, 133774, 200661, 267548, 401322, 535096, 802644, 869531, 1605288, 1739062, 2608593, 3478124, 5217186, 6956248, 10434372, 20868744]

約数ペア:

[(1, 20868744), (2, 10434372), (3, 6956248), (4, 5217186), (6, 3478124), (8, 2608593), (12, 1739062), (13, 1605288), (24, 869531), (26, 802644), (39, 535096), (52, 401322), (78, 267548), (104, 200661), (156, 133774), (211, 98904), (312, 66887), (317, 65832), (422, 49452), (633, 32968), (634, 32916), (844, 24726), (951, 21944), (1266, 16484), (1268, 16458), (1688, 12363), (1902, 10972), (2532, 8242), (2536, 8229), (2743, 7608), (3804, 5486), (4121, 5064)]