21796425

素因数分解:

$3^3\times 5^2\times 7^2\times {\mathrm{659}}^1$

素因数の和:692

約数の個数: 72

約数和(自身を含む): 46648800

約数和(自身を除く): 24852375

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 49, 63, 75, 105, 135, 147, 175, 189, 225, 245, 315, 441, 525, 659, 675, 735, 945, 1225, 1323, 1575, 1977, 2205, 3295, 3675, 4613, 4725, 5931, 6615, 9885, 11025, 13839, 16475, 17793, 23065, 29655, 32291, 33075, 41517, 49425, 69195, 88965, 96873, 115325, 124551, 148275, 161455, 207585, 290619, 345975, 444825, 484365, 622755, 807275, 871857, 1037925, 1453095, 2421825, 3113775, 4359285, 7265475, 21796425]

約数ペア:

[(1, 21796425), (3, 7265475), (5, 4359285), (7, 3113775), (9, 2421825), (15, 1453095), (21, 1037925), (25, 871857), (27, 807275), (35, 622755), (45, 484365), (49, 444825), (63, 345975), (75, 290619), (105, 207585), (135, 161455), (147, 148275), (175, 124551), (189, 115325), (225, 96873), (245, 88965), (315, 69195), (441, 49425), (525, 41517), (659, 33075), (675, 32291), (735, 29655), (945, 23065), (1225, 17793), (1323, 16475), (1575, 13839), (1977, 11025), (2205, 9885), (3295, 6615), (3675, 5931), (4613, 4725)]