21472388

素因数分解:

$2^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1543}}^1$

素因数の和:1632

約数の個数: 36

約数和(自身を含む): 44356032

約数和(自身を除く): 22883644

約数列:

[1, 2, 4, 7, 14, 28, 49, 71, 98, 142, 196, 284, 497, 994, 1543, 1988, 3086, 3479, 6172, 6958, 10801, 13916, 21602, 43204, 75607, 109553, 151214, 219106, 302428, 438212, 766871, 1533742, 3067484, 5368097, 10736194, 21472388]

約数ペア:

[(1, 21472388), (2, 10736194), (4, 5368097), (7, 3067484), (14, 1533742), (28, 766871), (49, 438212), (71, 302428), (98, 219106), (142, 151214), (196, 109553), (284, 75607), (497, 43204), (994, 21602), (1543, 13916), (1988, 10801), (3086, 6958), (3479, 6172)]