21236672

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:309

約数の個数: 56

約数和(自身を含む): 45262800

約数和(自身を除く): 24026128

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 131, 136, 149, 262, 272, 298, 524, 544, 596, 1048, 1088, 1192, 2096, 2227, 2384, 2533, 4192, 4454, 4768, 5066, 8384, 8908, 9536, 10132, 17816, 19519, 20264, 35632, 39038, 40528, 71264, 78076, 81056, 142528, 156152, 162112, 312304, 331823, 624608, 663646, 1249216, 1327292, 2654584, 5309168, 10618336, 21236672]

約数ペア:

[(1, 21236672), (2, 10618336), (4, 5309168), (8, 2654584), (16, 1327292), (17, 1249216), (32, 663646), (34, 624608), (64, 331823), (68, 312304), (131, 162112), (136, 156152), (149, 142528), (262, 81056), (272, 78076), (298, 71264), (524, 40528), (544, 39038), (596, 35632), (1048, 20264), (1088, 19519), (1192, 17816), (2096, 10132), (2227, 9536), (2384, 8908), (2533, 8384), (4192, 5066), (4454, 4768)]