21473970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{349}}^1$

素因数の和:659

約数の個数: 64

約数和(自身を含む): 59270400

約数和(自身を除く): 37796430

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 293, 349, 586, 698, 879, 1047, 1465, 1745, 1758, 2051, 2094, 2443, 2930, 3490, 4102, 4395, 4886, 5235, 6153, 7329, 8790, 10255, 10470, 12215, 12306, 14658, 20510, 24430, 30765, 36645, 61530, 73290, 102257, 204514, 306771, 511285, 613542, 715799, 1022570, 1431598, 1533855, 2147397, 3067710, 3578995, 4294794, 7157990, 10736985, 21473970]

約数ペア:

[(1, 21473970), (2, 10736985), (3, 7157990), (5, 4294794), (6, 3578995), (7, 3067710), (10, 2147397), (14, 1533855), (15, 1431598), (21, 1022570), (30, 715799), (35, 613542), (42, 511285), (70, 306771), (105, 204514), (210, 102257), (293, 73290), (349, 61530), (586, 36645), (698, 30765), (879, 24430), (1047, 20510), (1465, 14658), (1745, 12306), (1758, 12215), (2051, 10470), (2094, 10255), (2443, 8790), (2930, 7329), (3490, 6153), (4102, 5235), (4395, 4886)]