21318912

素因数分解:

$2^8\times 3^2\times {\mathrm{19}}^1\times {\mathrm{487}}^1$

素因数の和:528

約数の個数: 108

約数和(自身を含む): 64835680

約数和(自身を除く): 43516768

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 32, 36, 38, 48, 57, 64, 72, 76, 96, 114, 128, 144, 152, 171, 192, 228, 256, 288, 304, 342, 384, 456, 487, 576, 608, 684, 768, 912, 974, 1152, 1216, 1368, 1461, 1824, 1948, 2304, 2432, 2736, 2922, 3648, 3896, 4383, 4864, 5472, 5844, 7296, 7792, 8766, 9253, 10944, 11688, 14592, 15584, 17532, 18506, 21888, 23376, 27759, 31168, 35064, 37012, 43776, 46752, 55518, 62336, 70128, 74024, 83277, 93504, 111036, 124672, 140256, 148048, 166554, 187008, 222072, 280512, 296096, 333108, 374016, 444144, 561024, 592192, 666216, 888288, 1122048, 1184384, 1332432, 1776576, 2368768, 2664864, 3553152, 5329728, 7106304, 10659456, 21318912]

約数ペア:

[(1, 21318912), (2, 10659456), (3, 7106304), (4, 5329728), (6, 3553152), (8, 2664864), (9, 2368768), (12, 1776576), (16, 1332432), (18, 1184384), (19, 1122048), (24, 888288), (32, 666216), (36, 592192), (38, 561024), (48, 444144), (57, 374016), (64, 333108), (72, 296096), (76, 280512), (96, 222072), (114, 187008), (128, 166554), (144, 148048), (152, 140256), (171, 124672), (192, 111036), (228, 93504), (256, 83277), (288, 74024), (304, 70128), (342, 62336), (384, 55518), (456, 46752), (487, 43776), (576, 37012), (608, 35064), (684, 31168), (768, 27759), (912, 23376), (974, 21888), (1152, 18506), (1216, 17532), (1368, 15584), (1461, 14592), (1824, 11688), (1948, 10944), (2304, 9253), (2432, 8766), (2736, 7792), (2922, 7296), (3648, 5844), (3896, 5472), (4383, 4864)]