20996868436

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{1171}}^1\times {\mathrm{15511}}^1$

素因数の和:16720

約数の個数: 36

約数和(自身を含む): 39068957536

約数和(自身を除く): 18072089100

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 1171, 2342, 4684, 15511, 19907, 31022, 39814, 62044, 79628, 263687, 338419, 527374, 676838, 1054748, 1353676, 4482679, 8965358, 17930716, 18163381, 36326762, 72653524, 308777477, 617554954, 1235109908, 5249217109, 10498434218, 20996868436]

約数ペア:

[(1, 20996868436), (2, 10498434218), (4, 5249217109), (17, 1235109908), (34, 617554954), (68, 308777477), (289, 72653524), (578, 36326762), (1156, 18163381), (1171, 17930716), (2342, 8965358), (4684, 4482679), (15511, 1353676), (19907, 1054748), (31022, 676838), (39814, 527374), (62044, 338419), (79628, 263687)]