21283542

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{409}}^1$

素因数の和:490

約数の個数: 72

約数和(自身を含む): 54685800

約数和(自身を除く): 33402258

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 59, 63, 98, 118, 126, 147, 177, 294, 354, 409, 413, 441, 531, 818, 826, 882, 1062, 1227, 1239, 2454, 2478, 2863, 2891, 3681, 3717, 5726, 5782, 7362, 7434, 8589, 8673, 17178, 17346, 20041, 24131, 25767, 26019, 40082, 48262, 51534, 52038, 60123, 72393, 120246, 144786, 168917, 180369, 217179, 337834, 360738, 434358, 506751, 1013502, 1182419, 1520253, 2364838, 3040506, 3547257, 7094514, 10641771, 21283542]

約数ペア:

[(1, 21283542), (2, 10641771), (3, 7094514), (6, 3547257), (7, 3040506), (9, 2364838), (14, 1520253), (18, 1182419), (21, 1013502), (42, 506751), (49, 434358), (59, 360738), (63, 337834), (98, 217179), (118, 180369), (126, 168917), (147, 144786), (177, 120246), (294, 72393), (354, 60123), (409, 52038), (413, 51534), (441, 48262), (531, 40082), (818, 26019), (826, 25767), (882, 24131), (1062, 20041), (1227, 17346), (1239, 17178), (2454, 8673), (2478, 8589), (2863, 7434), (2891, 7362), (3681, 5782), (3717, 5726)]