21588897603

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{305329}}^1$

素因数の和:305396

約数の個数: 48

約数和(自身を含む): 37035307680

約数和(自身を除く): 15446410077

約数列:

[1, 3, 7, 13, 21, 37, 39, 49, 91, 111, 147, 259, 273, 481, 637, 777, 1443, 1813, 1911, 3367, 5439, 10101, 23569, 70707, 305329, 915987, 2137303, 3969277, 6411909, 11297173, 11907831, 14961121, 27784939, 33891519, 44883363, 79080211, 83354817, 146863249, 194494573, 237240633, 440589747, 553561477, 583483719, 1028042743, 1660684431, 3084128229, 7196299201, 21588897603]

約数ペア:

[(1, 21588897603), (3, 7196299201), (7, 3084128229), (13, 1660684431), (21, 1028042743), (37, 583483719), (39, 553561477), (49, 440589747), (91, 237240633), (111, 194494573), (147, 146863249), (259, 83354817), (273, 79080211), (481, 44883363), (637, 33891519), (777, 27784939), (1443, 14961121), (1813, 11907831), (1911, 11297173), (3367, 6411909), (5439, 3969277), (10101, 2137303), (23569, 915987), (70707, 305329)]