209890716

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{491}}^1\times {\mathrm{727}}^1$

素因数の和:1239

約数の個数: 72

約数和(自身を含む): 571648896

約数和(自身を除く): 361758180

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 491, 588, 727, 982, 1454, 1473, 1964, 2181, 2908, 2946, 3437, 4362, 5089, 5892, 6874, 8724, 10178, 10311, 13748, 15267, 20356, 20622, 24059, 30534, 35623, 41244, 48118, 61068, 71246, 72177, 96236, 106869, 142492, 144354, 213738, 288708, 356957, 427476, 713914, 1070871, 1427828, 2141742, 2498699, 4283484, 4997398, 7496097, 9994796, 14992194, 17490893, 29984388, 34981786, 52472679, 69963572, 104945358, 209890716]

約数ペア:

[(1, 209890716), (2, 104945358), (3, 69963572), (4, 52472679), (6, 34981786), (7, 29984388), (12, 17490893), (14, 14992194), (21, 9994796), (28, 7496097), (42, 4997398), (49, 4283484), (84, 2498699), (98, 2141742), (147, 1427828), (196, 1070871), (294, 713914), (491, 427476), (588, 356957), (727, 288708), (982, 213738), (1454, 144354), (1473, 142492), (1964, 106869), (2181, 96236), (2908, 72177), (2946, 71246), (3437, 61068), (4362, 48118), (5089, 41244), (5892, 35623), (6874, 30534), (8724, 24059), (10178, 20622), (10311, 20356), (13748, 15267)]