20912736

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^2\times {\mathrm{1289}}^1$

素因数の和:1328

約数の個数: 72

約数和(自身を含む): 59489640

約数和(自身を除く): 38576904

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 169, 208, 312, 338, 416, 507, 624, 676, 1014, 1248, 1289, 1352, 2028, 2578, 2704, 3867, 4056, 5156, 5408, 7734, 8112, 10312, 15468, 16224, 16757, 20624, 30936, 33514, 41248, 50271, 61872, 67028, 100542, 123744, 134056, 201084, 217841, 268112, 402168, 435682, 536224, 653523, 804336, 871364, 1307046, 1608672, 1742728, 2614092, 3485456, 5228184, 6970912, 10456368, 20912736]

約数ペア:

[(1, 20912736), (2, 10456368), (3, 6970912), (4, 5228184), (6, 3485456), (8, 2614092), (12, 1742728), (13, 1608672), (16, 1307046), (24, 871364), (26, 804336), (32, 653523), (39, 536224), (48, 435682), (52, 402168), (78, 268112), (96, 217841), (104, 201084), (156, 134056), (169, 123744), (208, 100542), (312, 67028), (338, 61872), (416, 50271), (507, 41248), (624, 33514), (676, 30936), (1014, 20624), (1248, 16757), (1289, 16224), (1352, 15468), (2028, 10312), (2578, 8112), (2704, 7734), (3867, 5408), (4056, 5156)]