20999874

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{21739}}^1$

素因数の和:21774

約数の個数: 32

約数和(自身を含む): 50088960

約数和(自身を除く): 29089086

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 138, 161, 322, 483, 966, 21739, 43478, 65217, 130434, 152173, 304346, 456519, 499997, 913038, 999994, 1499991, 2999982, 3499979, 6999958, 10499937, 20999874]

約数ペア:

[(1, 20999874), (2, 10499937), (3, 6999958), (6, 3499979), (7, 2999982), (14, 1499991), (21, 999994), (23, 913038), (42, 499997), (46, 456519), (69, 304346), (138, 152173), (161, 130434), (322, 65217), (483, 43478), (966, 21739)]