21849345

素因数分解:

$3^5\times 5^1\times 7^2\times {\mathrm{367}}^1$

素因数の和:401

約数の個数: 72

約数和(自身を含む): 45811584

約数和(自身を除く): 23962239

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 147, 189, 243, 245, 315, 367, 405, 441, 567, 735, 945, 1101, 1215, 1323, 1701, 1835, 2205, 2569, 2835, 3303, 3969, 5505, 6615, 7707, 8505, 9909, 11907, 12845, 16515, 17983, 19845, 23121, 29727, 38535, 49545, 53949, 59535, 69363, 89181, 89915, 115605, 148635, 161847, 208089, 269745, 346815, 445905, 485541, 624267, 809235, 1040445, 1456623, 2427705, 3121335, 4369869, 7283115, 21849345]

約数ペア:

[(1, 21849345), (3, 7283115), (5, 4369869), (7, 3121335), (9, 2427705), (15, 1456623), (21, 1040445), (27, 809235), (35, 624267), (45, 485541), (49, 445905), (63, 346815), (81, 269745), (105, 208089), (135, 161847), (147, 148635), (189, 115605), (243, 89915), (245, 89181), (315, 69363), (367, 59535), (405, 53949), (441, 49545), (567, 38535), (735, 29727), (945, 23121), (1101, 19845), (1215, 17983), (1323, 16515), (1701, 12845), (1835, 11907), (2205, 9909), (2569, 8505), (2835, 7707), (3303, 6615), (3969, 5505)]