21318366915

素因数分解:

$3^5\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{13591}}^1$

素因数の和:14902

約数の個数: 48

約数和(自身を含む): 38352926976

約数和(自身を除く): 17034560061

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 1291, 3873, 6455, 11619, 13591, 19365, 34857, 40773, 58095, 67955, 104571, 122319, 174285, 203865, 313713, 366957, 522855, 611595, 1100871, 1568565, 1834785, 3302613, 5504355, 16513065, 17545981, 52637943, 87729905, 157913829, 263189715, 473741487, 789569145, 1421224461, 2368707435, 4263673383, 7106122305, 21318366915]

約数ペア:

[(1, 21318366915), (3, 7106122305), (5, 4263673383), (9, 2368707435), (15, 1421224461), (27, 789569145), (45, 473741487), (81, 263189715), (135, 157913829), (243, 87729905), (405, 52637943), (1215, 17545981), (1291, 16513065), (3873, 5504355), (6455, 3302613), (11619, 1834785), (13591, 1568565), (19365, 1100871), (34857, 611595), (40773, 522855), (58095, 366957), (67955, 313713), (104571, 203865), (122319, 174285)]