21184470

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2531}}^1$

素因数の和:2578

約数の個数: 64

約数和(自身を含む): 58337280

約数和(自身を除く): 37152810

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 90, 93, 135, 155, 186, 270, 279, 310, 465, 558, 837, 930, 1395, 1674, 2531, 2790, 4185, 5062, 7593, 8370, 12655, 15186, 22779, 25310, 37965, 45558, 68337, 75930, 78461, 113895, 136674, 156922, 227790, 235383, 341685, 392305, 470766, 683370, 706149, 784610, 1176915, 1412298, 2118447, 2353830, 3530745, 4236894, 7061490, 10592235, 21184470]

約数ペア:

[(1, 21184470), (2, 10592235), (3, 7061490), (5, 4236894), (6, 3530745), (9, 2353830), (10, 2118447), (15, 1412298), (18, 1176915), (27, 784610), (30, 706149), (31, 683370), (45, 470766), (54, 392305), (62, 341685), (90, 235383), (93, 227790), (135, 156922), (155, 136674), (186, 113895), (270, 78461), (279, 75930), (310, 68337), (465, 45558), (558, 37965), (837, 25310), (930, 22779), (1395, 15186), (1674, 12655), (2531, 8370), (2790, 7593), (4185, 5062)]