21155976

素因数分解:

$2^3\times 3^2\times {\mathrm{131}}^1\times {\mathrm{2243}}^1$

素因数の和:2386

約数の個数: 48

約数和(自身を含む): 57760560

約数和(自身を除く): 36604584

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 131, 262, 393, 524, 786, 1048, 1179, 1572, 2243, 2358, 3144, 4486, 4716, 6729, 8972, 9432, 13458, 17944, 20187, 26916, 40374, 53832, 80748, 161496, 293833, 587666, 881499, 1175332, 1762998, 2350664, 2644497, 3525996, 5288994, 7051992, 10577988, 21155976]

約数ペア:

[(1, 21155976), (2, 10577988), (3, 7051992), (4, 5288994), (6, 3525996), (8, 2644497), (9, 2350664), (12, 1762998), (18, 1175332), (24, 881499), (36, 587666), (72, 293833), (131, 161496), (262, 80748), (393, 53832), (524, 40374), (786, 26916), (1048, 20187), (1179, 17944), (1572, 13458), (2243, 9432), (2358, 8972), (3144, 6729), (4486, 4716)]