20944902

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:429

約数の個数: 64

約数和(自身を含む): 48936960

約数和(自身を除く): 27992058

約数列:

[1, 2, 3, 6, 11, 22, 29, 31, 33, 58, 62, 66, 87, 93, 174, 186, 319, 341, 353, 638, 682, 706, 899, 957, 1023, 1059, 1798, 1914, 2046, 2118, 2697, 3883, 5394, 7766, 9889, 10237, 10943, 11649, 19778, 20474, 21886, 23298, 29667, 30711, 32829, 59334, 61422, 65658, 112607, 120373, 225214, 240746, 317347, 337821, 361119, 634694, 675642, 722238, 952041, 1904082, 3490817, 6981634, 10472451, 20944902]

約数ペア:

[(1, 20944902), (2, 10472451), (3, 6981634), (6, 3490817), (11, 1904082), (22, 952041), (29, 722238), (31, 675642), (33, 634694), (58, 361119), (62, 337821), (66, 317347), (87, 240746), (93, 225214), (174, 120373), (186, 112607), (319, 65658), (341, 61422), (353, 59334), (638, 32829), (682, 30711), (706, 29667), (899, 23298), (957, 21886), (1023, 20474), (1059, 19778), (1798, 11649), (1914, 10943), (2046, 10237), (2118, 9889), (2697, 7766), (3883, 5394)]