21941504

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1$

素因数の和:395

約数の個数: 72

約数和(自身を含む): 49791840

約数和(自身を除く): 27850336

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 152, 208, 247, 256, 304, 347, 416, 494, 608, 694, 832, 988, 1216, 1388, 1664, 1976, 2432, 2776, 3328, 3952, 4511, 4864, 5552, 6593, 7904, 9022, 11104, 13186, 15808, 18044, 22208, 26372, 31616, 36088, 44416, 52744, 63232, 72176, 85709, 88832, 105488, 144352, 171418, 210976, 288704, 342836, 421952, 577408, 685672, 843904, 1154816, 1371344, 1687808, 2742688, 5485376, 10970752, 21941504]

約数ペア:

[(1, 21941504), (2, 10970752), (4, 5485376), (8, 2742688), (13, 1687808), (16, 1371344), (19, 1154816), (26, 843904), (32, 685672), (38, 577408), (52, 421952), (64, 342836), (76, 288704), (104, 210976), (128, 171418), (152, 144352), (208, 105488), (247, 88832), (256, 85709), (304, 72176), (347, 63232), (416, 52744), (494, 44416), (608, 36088), (694, 31616), (832, 26372), (988, 22208), (1216, 18044), (1388, 15808), (1664, 13186), (1976, 11104), (2432, 9022), (2776, 7904), (3328, 6593), (3952, 5552), (4511, 4864)]