21801984

素因数分解:

$2^{10}\times 3^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:221

約数の個数: 88

約数和(自身を含む): 59739648

約数和(自身を除く): 37937664

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 47, 48, 64, 94, 96, 128, 141, 151, 188, 192, 256, 282, 302, 376, 384, 453, 512, 564, 604, 752, 768, 906, 1024, 1128, 1208, 1504, 1536, 1812, 2256, 2416, 3008, 3072, 3624, 4512, 4832, 6016, 7097, 7248, 9024, 9664, 12032, 14194, 14496, 18048, 19328, 21291, 24064, 28388, 28992, 36096, 38656, 42582, 48128, 56776, 57984, 72192, 77312, 85164, 113552, 115968, 144384, 154624, 170328, 227104, 231936, 340656, 454208, 463872, 681312, 908416, 1362624, 1816832, 2725248, 3633664, 5450496, 7267328, 10900992, 21801984]

約数ペア:

[(1, 21801984), (2, 10900992), (3, 7267328), (4, 5450496), (6, 3633664), (8, 2725248), (12, 1816832), (16, 1362624), (24, 908416), (32, 681312), (47, 463872), (48, 454208), (64, 340656), (94, 231936), (96, 227104), (128, 170328), (141, 154624), (151, 144384), (188, 115968), (192, 113552), (256, 85164), (282, 77312), (302, 72192), (376, 57984), (384, 56776), (453, 48128), (512, 42582), (564, 38656), (604, 36096), (752, 28992), (768, 28388), (906, 24064), (1024, 21291), (1128, 19328), (1208, 18048), (1504, 14496), (1536, 14194), (1812, 12032), (2256, 9664), (2416, 9024), (3008, 7248), (3072, 7097), (3624, 6016), (4512, 4832)]