20153427

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{263}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 11780013

約数列:

[1, 3, 7, 21, 41, 89, 123, 263, 267, 287, 623, 789, 861, 1841, 1869, 3649, 5523, 10783, 10947, 23407, 25543, 32349, 70221, 75481, 76629, 163849, 226443, 491547, 959687, 2879061, 6717809, 20153427]

約数ペア:

[(1, 20153427), (3, 6717809), (7, 2879061), (21, 959687), (41, 491547), (89, 226443), (123, 163849), (263, 76629), (267, 75481), (287, 70221), (623, 32349), (789, 25543), (861, 23407), (1841, 10947), (1869, 10783), (3649, 5523)]