21709548

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:452

約数の個数: 108

約数和(自身を含む): 66061632

約数和(自身を除く): 44352084

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 49, 62, 63, 84, 93, 98, 124, 126, 147, 186, 196, 217, 252, 279, 294, 372, 397, 434, 441, 558, 588, 651, 794, 868, 882, 1116, 1191, 1302, 1519, 1588, 1764, 1953, 2382, 2604, 2779, 3038, 3573, 3906, 4557, 4764, 5558, 6076, 7146, 7812, 8337, 9114, 11116, 12307, 13671, 14292, 16674, 18228, 19453, 24614, 25011, 27342, 33348, 36921, 38906, 49228, 50022, 54684, 58359, 73842, 77812, 86149, 100044, 110763, 116718, 147684, 172298, 175077, 221526, 233436, 258447, 344596, 350154, 443052, 516894, 603043, 700308, 775341, 1033788, 1206086, 1550682, 1809129, 2412172, 3101364, 3618258, 5427387, 7236516, 10854774, 21709548]

約数ペア:

[(1, 21709548), (2, 10854774), (3, 7236516), (4, 5427387), (6, 3618258), (7, 3101364), (9, 2412172), (12, 1809129), (14, 1550682), (18, 1206086), (21, 1033788), (28, 775341), (31, 700308), (36, 603043), (42, 516894), (49, 443052), (62, 350154), (63, 344596), (84, 258447), (93, 233436), (98, 221526), (124, 175077), (126, 172298), (147, 147684), (186, 116718), (196, 110763), (217, 100044), (252, 86149), (279, 77812), (294, 73842), (372, 58359), (397, 54684), (434, 50022), (441, 49228), (558, 38906), (588, 36921), (651, 33348), (794, 27342), (868, 25011), (882, 24614), (1116, 19453), (1191, 18228), (1302, 16674), (1519, 14292), (1588, 13671), (1764, 12307), (1953, 11116), (2382, 9114), (2604, 8337), (2779, 7812), (3038, 7146), (3573, 6076), (3906, 5558), (4557, 4764)]