21301017

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 31497984

約数和(自身を除く): 10196967

約数列:

[1, 3, 17, 41, 51, 61, 123, 167, 183, 501, 697, 1037, 2091, 2501, 2839, 3111, 6847, 7503, 8517, 10187, 20541, 30561, 42517, 116399, 127551, 173179, 349197, 417667, 519537, 1253001, 7100339, 21301017]

約数ペア:

[(1, 21301017), (3, 7100339), (17, 1253001), (41, 519537), (51, 417667), (61, 349197), (123, 173179), (167, 127551), (183, 116399), (501, 42517), (697, 30561), (1037, 20541), (2091, 10187), (2501, 8517), (2839, 7503), (3111, 6847)]