21615672975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1304113}}^1$

素因数の和:1304156

約数の個数: 48

約数和(自身を含む): 40750954272

約数和(自身を除く): 19135281297

約数列:

[1, 3, 5, 13, 15, 17, 25, 39, 51, 65, 75, 85, 195, 221, 255, 325, 425, 663, 975, 1105, 1275, 3315, 5525, 16575, 1304113, 3912339, 6520565, 16953469, 19561695, 22169921, 32602825, 50860407, 66509763, 84767345, 97808475, 110849605, 254302035, 288208973, 332548815, 423836725, 554248025, 864626919, 1271510175, 1441044865, 1662744075, 4323134595, 7205224325, 21615672975]

約数ペア:

[(1, 21615672975), (3, 7205224325), (5, 4323134595), (13, 1662744075), (15, 1441044865), (17, 1271510175), (25, 864626919), (39, 554248025), (51, 423836725), (65, 332548815), (75, 288208973), (85, 254302035), (195, 110849605), (221, 97808475), (255, 84767345), (325, 66509763), (425, 50860407), (663, 32602825), (975, 22169921), (1105, 19561695), (1275, 16953469), (3315, 6520565), (5525, 3912339), (16575, 1304113)]