19907573778

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{244091}}^1$

素因数の和:244319

約数の個数: 48

約数和(自身を含む): 45237082176

約数和(自身を除く): 25329508398

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 197, 207, 394, 414, 591, 1182, 1773, 3546, 4531, 9062, 13593, 27186, 40779, 81558, 244091, 488182, 732273, 1464546, 2196819, 4393638, 5614093, 11228186, 16842279, 33684558, 48085927, 50526837, 96171854, 101053674, 144257781, 288515562, 432773343, 865546686, 1105976321, 2211952642, 3317928963, 6635857926, 9953786889, 19907573778]

約数ペア:

[(1, 19907573778), (2, 9953786889), (3, 6635857926), (6, 3317928963), (9, 2211952642), (18, 1105976321), (23, 865546686), (46, 432773343), (69, 288515562), (138, 144257781), (197, 101053674), (207, 96171854), (394, 50526837), (414, 48085927), (591, 33684558), (1182, 16842279), (1773, 11228186), (3546, 5614093), (4531, 4393638), (9062, 2196819), (13593, 1464546), (27186, 732273), (40779, 488182), (81558, 244091)]