21802557

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1031}}^1$

素因数の和:1113

約数の個数: 32

約数和(自身を含む): 35665920

約数和(自身を除く): 13863363

約数列:

[1, 3, 7, 19, 21, 53, 57, 133, 159, 371, 399, 1007, 1031, 1113, 3021, 3093, 7049, 7217, 19589, 21147, 21651, 54643, 58767, 137123, 163929, 382501, 411369, 1038217, 1147503, 3114651, 7267519, 21802557]

約数ペア:

[(1, 21802557), (3, 7267519), (7, 3114651), (19, 1147503), (21, 1038217), (53, 411369), (57, 382501), (133, 163929), (159, 137123), (371, 58767), (399, 54643), (1007, 21651), (1031, 21147), (1113, 19589), (3021, 7217), (3093, 7049)]