21973400

素因数分解:

$2^3\times 5^2\times {\mathrm{181}}^1\times {\mathrm{607}}^1$

素因数の和:804

約数の個数: 48

約数和(自身を含む): 51455040

約数和(自身を除く): 29481640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 181, 200, 362, 607, 724, 905, 1214, 1448, 1810, 2428, 3035, 3620, 4525, 4856, 6070, 7240, 9050, 12140, 15175, 18100, 24280, 30350, 36200, 60700, 109867, 121400, 219734, 439468, 549335, 878936, 1098670, 2197340, 2746675, 4394680, 5493350, 10986700, 21973400]

約数ペア:

[(1, 21973400), (2, 10986700), (4, 5493350), (5, 4394680), (8, 2746675), (10, 2197340), (20, 1098670), (25, 878936), (40, 549335), (50, 439468), (100, 219734), (181, 121400), (200, 109867), (362, 60700), (607, 36200), (724, 30350), (905, 24280), (1214, 18100), (1448, 15175), (1810, 12140), (2428, 9050), (3035, 7240), (3620, 6070), (4525, 4856)]