21491617136

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6426919}}^1$

素因数の和:6426957

約数の個数: 40

約数和(自身を含む): 47816284800

約数和(自身を除く): 26324667664

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 6426919, 12853838, 25707676, 51415352, 70696109, 102830704, 122111461, 141392218, 244222922, 282784436, 488445844, 565568872, 976891688, 1131137744, 1343226071, 1953783376, 2686452142, 5372904284, 10745808568, 21491617136]

約数ペア:

[(1, 21491617136), (2, 10745808568), (4, 5372904284), (8, 2686452142), (11, 1953783376), (16, 1343226071), (19, 1131137744), (22, 976891688), (38, 565568872), (44, 488445844), (76, 282784436), (88, 244222922), (152, 141392218), (176, 122111461), (209, 102830704), (304, 70696109), (418, 51415352), (836, 25707676), (1672, 12853838), (3344, 6426919)]