21247008

素因数分解:

$2^5\times 3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{277}}^1$

素因数の和:354

約数の個数: 96

約数和(自身を含む): 60528384

約数和(自身を除く): 39281376

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 32, 34, 47, 48, 51, 68, 94, 96, 102, 136, 141, 188, 204, 272, 277, 282, 376, 408, 544, 554, 564, 752, 799, 816, 831, 1108, 1128, 1504, 1598, 1632, 1662, 2216, 2256, 2397, 3196, 3324, 4432, 4512, 4709, 4794, 6392, 6648, 8864, 9418, 9588, 12784, 13019, 13296, 14127, 18836, 19176, 25568, 26038, 26592, 28254, 37672, 38352, 39057, 52076, 56508, 75344, 76704, 78114, 104152, 113016, 150688, 156228, 208304, 221323, 226032, 312456, 416608, 442646, 452064, 624912, 663969, 885292, 1249824, 1327938, 1770584, 2655876, 3541168, 5311752, 7082336, 10623504, 21247008]

約数ペア:

[(1, 21247008), (2, 10623504), (3, 7082336), (4, 5311752), (6, 3541168), (8, 2655876), (12, 1770584), (16, 1327938), (17, 1249824), (24, 885292), (32, 663969), (34, 624912), (47, 452064), (48, 442646), (51, 416608), (68, 312456), (94, 226032), (96, 221323), (102, 208304), (136, 156228), (141, 150688), (188, 113016), (204, 104152), (272, 78114), (277, 76704), (282, 75344), (376, 56508), (408, 52076), (544, 39057), (554, 38352), (564, 37672), (752, 28254), (799, 26592), (816, 26038), (831, 25568), (1108, 19176), (1128, 18836), (1504, 14127), (1598, 13296), (1632, 13019), (1662, 12784), (2216, 9588), (2256, 9418), (2397, 8864), (3196, 6648), (3324, 6392), (4432, 4794), (4512, 4709)]