21000359601

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{25037}}^1$

素因数の和:25230

約数の個数: 48

約数和(自身を含む): 33465991104

約数和(自身を除く): 12465631503

約数列:

[1, 3, 9, 13, 39, 67, 107, 117, 201, 321, 603, 871, 963, 1391, 2613, 4173, 7169, 7839, 12519, 21507, 25037, 64521, 75111, 93197, 225333, 279591, 325481, 838773, 976443, 1677479, 2678959, 2929329, 5032437, 8036877, 15097311, 21807227, 24110631, 34826467, 65421681, 104479401, 179490253, 196265043, 313438203, 538470759, 1615412277, 2333373289, 7000119867, 21000359601]

約数ペア:

[(1, 21000359601), (3, 7000119867), (9, 2333373289), (13, 1615412277), (39, 538470759), (67, 313438203), (107, 196265043), (117, 179490253), (201, 104479401), (321, 65421681), (603, 34826467), (871, 24110631), (963, 21807227), (1391, 15097311), (2613, 8036877), (4173, 5032437), (7169, 2929329), (7839, 2678959), (12519, 1677479), (21507, 976443), (25037, 838773), (64521, 325481), (75111, 279591), (93197, 225333)]