19877888

素因数分解:

$2^{12}\times {\mathrm{23}}^1\times {\mathrm{211}}^1$

素因数の和:258

約数の個数: 52

約数和(自身を含む): 41675808

約数和(自身を除く): 21797920

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 211, 256, 368, 422, 512, 736, 844, 1024, 1472, 1688, 2048, 2944, 3376, 4096, 4853, 5888, 6752, 9706, 11776, 13504, 19412, 23552, 27008, 38824, 47104, 54016, 77648, 94208, 108032, 155296, 216064, 310592, 432128, 621184, 864256, 1242368, 2484736, 4969472, 9938944, 19877888]

約数ペア:

[(1, 19877888), (2, 9938944), (4, 4969472), (8, 2484736), (16, 1242368), (23, 864256), (32, 621184), (46, 432128), (64, 310592), (92, 216064), (128, 155296), (184, 108032), (211, 94208), (256, 77648), (368, 54016), (422, 47104), (512, 38824), (736, 27008), (844, 23552), (1024, 19412), (1472, 13504), (1688, 11776), (2048, 9706), (2944, 6752), (3376, 5888), (4096, 4853)]