20891952

素因数分解:

$2^4\times 3^3\times {\mathrm{137}}^1\times {\mathrm{353}}^1$

素因数の和:507

約数の個数: 80

約数和(自身を含む): 60576480

約数和(自身を除く): 39684528

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 137, 144, 216, 274, 353, 411, 432, 548, 706, 822, 1059, 1096, 1233, 1412, 1644, 2118, 2192, 2466, 2824, 3177, 3288, 3699, 4236, 4932, 5648, 6354, 6576, 7398, 8472, 9531, 9864, 12708, 14796, 16944, 19062, 19728, 25416, 29592, 38124, 48361, 50832, 59184, 76248, 96722, 145083, 152496, 193444, 290166, 386888, 435249, 580332, 773776, 870498, 1160664, 1305747, 1740996, 2321328, 2611494, 3481992, 5222988, 6963984, 10445976, 20891952]

約数ペア:

[(1, 20891952), (2, 10445976), (3, 6963984), (4, 5222988), (6, 3481992), (8, 2611494), (9, 2321328), (12, 1740996), (16, 1305747), (18, 1160664), (24, 870498), (27, 773776), (36, 580332), (48, 435249), (54, 386888), (72, 290166), (108, 193444), (137, 152496), (144, 145083), (216, 96722), (274, 76248), (353, 59184), (411, 50832), (432, 48361), (548, 38124), (706, 29592), (822, 25416), (1059, 19728), (1096, 19062), (1233, 16944), (1412, 14796), (1644, 12708), (2118, 9864), (2192, 9531), (2466, 8472), (2824, 7398), (3177, 6576), (3288, 6354), (3699, 5648), (4236, 4932)]