21604284

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:156

約数の個数: 108

約数和(自身を含む): 61149816

約数和(自身を除く): 39545532

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 53, 67, 78, 106, 117, 134, 156, 159, 169, 201, 212, 234, 268, 318, 338, 402, 468, 477, 507, 603, 636, 676, 689, 804, 871, 954, 1014, 1206, 1378, 1521, 1742, 1908, 2028, 2067, 2412, 2613, 2756, 3042, 3484, 3551, 4134, 5226, 6084, 6201, 7102, 7839, 8268, 8957, 10452, 10653, 11323, 12402, 14204, 15678, 17914, 21306, 22646, 24804, 26871, 31356, 31959, 33969, 35828, 42612, 45292, 46163, 53742, 63918, 67938, 80613, 92326, 101907, 107484, 127836, 135876, 138489, 161226, 184652, 203814, 276978, 322452, 407628, 415467, 553956, 600119, 830934, 1200238, 1661868, 1800357, 2400476, 3600714, 5401071, 7201428, 10802142, 21604284]

約数ペア:

[(1, 21604284), (2, 10802142), (3, 7201428), (4, 5401071), (6, 3600714), (9, 2400476), (12, 1800357), (13, 1661868), (18, 1200238), (26, 830934), (36, 600119), (39, 553956), (52, 415467), (53, 407628), (67, 322452), (78, 276978), (106, 203814), (117, 184652), (134, 161226), (156, 138489), (159, 135876), (169, 127836), (201, 107484), (212, 101907), (234, 92326), (268, 80613), (318, 67938), (338, 63918), (402, 53742), (468, 46163), (477, 45292), (507, 42612), (603, 35828), (636, 33969), (676, 31959), (689, 31356), (804, 26871), (871, 24804), (954, 22646), (1014, 21306), (1206, 17914), (1378, 15678), (1521, 14204), (1742, 12402), (1908, 11323), (2028, 10653), (2067, 10452), (2412, 8957), (2613, 8268), (2756, 7839), (3042, 7102), (3484, 6201), (3551, 6084), (4134, 5226)]