21409908

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1933}}^1$

素因数の和:2024

約数の個数: 48

約数和(自身を含む): 54585216

約数和(自身を除く): 33175308

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 71, 78, 142, 156, 213, 284, 426, 852, 923, 1846, 1933, 2769, 3692, 3866, 5538, 5799, 7732, 11076, 11598, 23196, 25129, 50258, 75387, 100516, 137243, 150774, 274486, 301548, 411729, 548972, 823458, 1646916, 1784159, 3568318, 5352477, 7136636, 10704954, 21409908]

約数ペア:

[(1, 21409908), (2, 10704954), (3, 7136636), (4, 5352477), (6, 3568318), (12, 1784159), (13, 1646916), (26, 823458), (39, 548972), (52, 411729), (71, 301548), (78, 274486), (142, 150774), (156, 137243), (213, 100516), (284, 75387), (426, 50258), (852, 25129), (923, 23196), (1846, 11598), (1933, 11076), (2769, 7732), (3692, 5799), (3866, 5538)]