21770735

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 31363200

約数和(自身を除く): 9592465

約数列:

[1, 5, 7, 29, 35, 89, 145, 203, 241, 445, 623, 1015, 1205, 1687, 2581, 3115, 6989, 8435, 12905, 18067, 21449, 34945, 48923, 90335, 107245, 150143, 244615, 622021, 750715, 3110105, 4354147, 21770735]

約数ペア:

[(1, 21770735), (5, 4354147), (7, 3110105), (29, 750715), (35, 622021), (89, 244615), (145, 150143), (203, 107245), (241, 90335), (445, 48923), (623, 34945), (1015, 21449), (1205, 18067), (1687, 12905), (2581, 8435), (3115, 6989)]