21487494

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{8387}}^1$

素因数の和:8460

約数の個数: 32

約数和(自身を含む): 49925376

約数和(自身を除く): 28437882

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 61, 122, 183, 366, 427, 854, 1281, 2562, 8387, 16774, 25161, 50322, 58709, 117418, 176127, 352254, 511607, 1023214, 1534821, 3069642, 3581249, 7162498, 10743747, 21487494]

約数ペア:

[(1, 21487494), (2, 10743747), (3, 7162498), (6, 3581249), (7, 3069642), (14, 1534821), (21, 1023214), (42, 511607), (61, 352254), (122, 176127), (183, 117418), (366, 58709), (427, 50322), (854, 25161), (1281, 16774), (2562, 8387)]