20687835

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2699}}^1$

素因数の和:2787

約数の個数: 32

約数和(自身を含む): 38361600

約数和(自身を除く): 17673765

約数列:

[1, 3, 5, 7, 15, 21, 35, 73, 105, 219, 365, 511, 1095, 1533, 2555, 2699, 7665, 8097, 13495, 18893, 40485, 56679, 94465, 197027, 283395, 591081, 985135, 1379189, 2955405, 4137567, 6895945, 20687835]

約数ペア:

[(1, 20687835), (3, 6895945), (5, 4137567), (7, 2955405), (15, 1379189), (21, 985135), (35, 591081), (73, 283395), (105, 197027), (219, 94465), (365, 56679), (511, 40485), (1095, 18893), (1533, 13495), (2555, 8097), (2699, 7665)]