21984512

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 49399392

約数和(自身を除く): 27414880

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 37, 44, 64, 74, 88, 128, 148, 176, 211, 256, 296, 352, 407, 422, 592, 704, 814, 844, 1184, 1408, 1628, 1688, 2321, 2368, 2816, 3256, 3376, 4642, 4736, 6512, 6752, 7807, 9284, 9472, 13024, 13504, 15614, 18568, 26048, 27008, 31228, 37136, 52096, 54016, 62456, 74272, 85877, 104192, 124912, 148544, 171754, 249824, 297088, 343508, 499648, 594176, 687016, 999296, 1374032, 1998592, 2748064, 5496128, 10992256, 21984512]

約数ペア:

[(1, 21984512), (2, 10992256), (4, 5496128), (8, 2748064), (11, 1998592), (16, 1374032), (22, 999296), (32, 687016), (37, 594176), (44, 499648), (64, 343508), (74, 297088), (88, 249824), (128, 171754), (148, 148544), (176, 124912), (211, 104192), (256, 85877), (296, 74272), (352, 62456), (407, 54016), (422, 52096), (592, 37136), (704, 31228), (814, 27008), (844, 26048), (1184, 18568), (1408, 15614), (1628, 13504), (1688, 13024), (2321, 9472), (2368, 9284), (2816, 7807), (3256, 6752), (3376, 6512), (4642, 4736)]