20411356

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{313}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 43678656

約数和(自身を除く): 23267300

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 137, 238, 274, 313, 476, 548, 626, 959, 1252, 1918, 2191, 2329, 3836, 4382, 4658, 5321, 8764, 9316, 10642, 16303, 21284, 32606, 37247, 42881, 65212, 74494, 85762, 148988, 171524, 300167, 600334, 728977, 1200668, 1457954, 2915908, 5102839, 10205678, 20411356]

約数ペア:

[(1, 20411356), (2, 10205678), (4, 5102839), (7, 2915908), (14, 1457954), (17, 1200668), (28, 728977), (34, 600334), (68, 300167), (119, 171524), (137, 148988), (238, 85762), (274, 74494), (313, 65212), (476, 42881), (548, 37247), (626, 32606), (959, 21284), (1252, 16303), (1918, 10642), (2191, 9316), (2329, 8764), (3836, 5321), (4382, 4658)]