21318824

素因数分解:

$2^3\times {\mathrm{31}}^2\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:174

約数の個数: 48

約数和(自身を含む): 42897600

約数和(自身を除く): 21578776

約数列:

[1, 2, 4, 8, 31, 47, 59, 62, 94, 118, 124, 188, 236, 248, 376, 472, 961, 1457, 1829, 1922, 2773, 2914, 3658, 3844, 5546, 5828, 7316, 7688, 11092, 11656, 14632, 22184, 45167, 56699, 85963, 90334, 113398, 171926, 180668, 226796, 343852, 361336, 453592, 687704, 2664853, 5329706, 10659412, 21318824]

約数ペア:

[(1, 21318824), (2, 10659412), (4, 5329706), (8, 2664853), (31, 687704), (47, 453592), (59, 361336), (62, 343852), (94, 226796), (118, 180668), (124, 171926), (188, 113398), (236, 90334), (248, 85963), (376, 56699), (472, 45167), (961, 22184), (1457, 14632), (1829, 11656), (1922, 11092), (2773, 7688), (2914, 7316), (3658, 5828), (3844, 5546)]