70721021

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{379}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 90470400

約数和(自身を除く): 19749379

約数列:

[1, 7, 19, 23, 61, 133, 161, 379, 427, 437, 1159, 1403, 2653, 3059, 7201, 8113, 8717, 9821, 23119, 26657, 50407, 61019, 161833, 165623, 186599, 439261, 531737, 1159361, 3074827, 3722159, 10103003, 70721021]

約数ペア:

[(1, 70721021), (7, 10103003), (19, 3722159), (23, 3074827), (61, 1159361), (133, 531737), (161, 439261), (379, 186599), (427, 165623), (437, 161833), (1159, 61019), (1403, 50407), (2653, 26657), (3059, 23119), (7201, 9821), (8113, 8717)]