21674835

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:177

約数の個数: 96

約数和(自身を含む): 47523840

約数和(自身を除く): 25849005

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 67, 79, 91, 105, 117, 195, 201, 237, 273, 315, 335, 395, 455, 469, 553, 585, 603, 711, 819, 871, 1005, 1027, 1185, 1365, 1407, 1659, 2345, 2613, 2765, 3015, 3081, 3555, 4095, 4221, 4355, 4977, 5135, 5293, 6097, 7035, 7189, 7839, 8295, 9243, 13065, 15405, 15879, 18291, 21105, 21567, 24885, 26465, 30485, 35945, 37051, 39195, 46215, 47637, 54873, 64701, 68809, 79395, 91455, 107835, 111153, 185255, 206427, 238185, 274365, 323505, 333459, 344045, 481663, 555765, 619281, 1032135, 1444989, 1667295, 2408315, 3096405, 4334967, 7224945, 21674835]

約数ペア:

[(1, 21674835), (3, 7224945), (5, 4334967), (7, 3096405), (9, 2408315), (13, 1667295), (15, 1444989), (21, 1032135), (35, 619281), (39, 555765), (45, 481663), (63, 344045), (65, 333459), (67, 323505), (79, 274365), (91, 238185), (105, 206427), (117, 185255), (195, 111153), (201, 107835), (237, 91455), (273, 79395), (315, 68809), (335, 64701), (395, 54873), (455, 47637), (469, 46215), (553, 39195), (585, 37051), (603, 35945), (711, 30485), (819, 26465), (871, 24885), (1005, 21567), (1027, 21105), (1185, 18291), (1365, 15879), (1407, 15405), (1659, 13065), (2345, 9243), (2613, 8295), (2765, 7839), (3015, 7189), (3081, 7035), (3555, 6097), (4095, 5293), (4221, 5135), (4355, 4977)]