21037695

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1049}}^1$

素因数の和:1255

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 17669505

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 191, 573, 955, 1049, 1337, 2865, 3147, 4011, 5245, 6685, 7343, 15735, 20055, 22029, 36715, 110145, 200359, 601077, 1001795, 1402513, 3005385, 4207539, 7012565, 21037695]

約数ペア:

[(1, 21037695), (3, 7012565), (5, 4207539), (7, 3005385), (15, 1402513), (21, 1001795), (35, 601077), (105, 200359), (191, 110145), (573, 36715), (955, 22029), (1049, 20055), (1337, 15735), (2865, 7343), (3147, 6685), (4011, 5245)]