21572265

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 19796055

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 89, 113, 143, 165, 195, 267, 339, 429, 445, 565, 715, 979, 1157, 1243, 1335, 1469, 1695, 2145, 2937, 3471, 3729, 4407, 4895, 5785, 6215, 7345, 10057, 12727, 14685, 16159, 17355, 18645, 22035, 30171, 38181, 48477, 50285, 63635, 80795, 110627, 130741, 150855, 190905, 242385, 331881, 392223, 553135, 653705, 1438151, 1659405, 1961115, 4314453, 7190755, 21572265]

約数ペア:

[(1, 21572265), (3, 7190755), (5, 4314453), (11, 1961115), (13, 1659405), (15, 1438151), (33, 653705), (39, 553135), (55, 392223), (65, 331881), (89, 242385), (113, 190905), (143, 150855), (165, 130741), (195, 110627), (267, 80795), (339, 63635), (429, 50285), (445, 48477), (565, 38181), (715, 30171), (979, 22035), (1157, 18645), (1243, 17355), (1335, 16159), (1469, 14685), (1695, 12727), (2145, 10057), (2937, 7345), (3471, 6215), (3729, 5785), (4407, 4895)]