20181279987

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{503}}^1\times {\mathrm{6869}}^1$

素因数の和:7448

約数の個数: 48

約数和(自身を含む): 32408812800

約数和(自身を除く): 12227532813

約数列:

[1, 3, 9, 11, 33, 59, 99, 177, 503, 531, 649, 1509, 1947, 4527, 5533, 5841, 6869, 16599, 20607, 29677, 49797, 61821, 75559, 89031, 226677, 267093, 326447, 405271, 680031, 979341, 1215813, 2938023, 3455107, 3647439, 4457981, 10365321, 13373943, 31095963, 38006177, 40121829, 114018531, 203851313, 342055593, 611553939, 1834661817, 2242364443, 6727093329, 20181279987]

約数ペア:

[(1, 20181279987), (3, 6727093329), (9, 2242364443), (11, 1834661817), (33, 611553939), (59, 342055593), (99, 203851313), (177, 114018531), (503, 40121829), (531, 38006177), (649, 31095963), (1509, 13373943), (1947, 10365321), (4527, 4457981), (5533, 3647439), (5841, 3455107), (6869, 2938023), (16599, 1215813), (20607, 979341), (29677, 680031), (49797, 405271), (61821, 326447), (75559, 267093), (89031, 226677)]