20221396

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 40720960

約数和(自身を除く): 20499564

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 97, 194, 211, 247, 388, 422, 494, 844, 988, 1261, 1843, 2522, 2743, 3686, 4009, 5044, 5486, 7372, 8018, 10972, 16036, 20467, 23959, 40934, 47918, 52117, 81868, 95836, 104234, 208468, 266071, 388873, 532142, 777746, 1064284, 1555492, 5055349, 10110698, 20221396]

約数ペア:

[(1, 20221396), (2, 10110698), (4, 5055349), (13, 1555492), (19, 1064284), (26, 777746), (38, 532142), (52, 388873), (76, 266071), (97, 208468), (194, 104234), (211, 95836), (247, 81868), (388, 52117), (422, 47918), (494, 40934), (844, 23959), (988, 20467), (1261, 16036), (1843, 10972), (2522, 8018), (2743, 7372), (3686, 5486), (4009, 5044)]