21204346790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1733}}^1\times {\mathrm{2713}}^1$

素因数の和:4505

約数の個数: 64

約数和(自身を含む): 42693521472

約数和(自身を除く): 21489174682

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 451, 902, 1733, 2255, 2713, 3466, 4510, 5426, 8665, 13565, 17330, 19063, 27130, 29843, 38126, 59686, 71053, 95315, 111233, 142106, 149215, 190630, 222466, 298430, 355265, 556165, 710530, 781583, 1112330, 1223563, 1563166, 2447126, 3907915, 4701629, 6117815, 7815830, 9403258, 12235630, 23508145, 47016290, 51717919, 103435838, 192766789, 258589595, 385533578, 517179190, 963833945, 1927667890, 2120434679, 4240869358, 10602173395, 21204346790]

約数ペア:

[(1, 21204346790), (2, 10602173395), (5, 4240869358), (10, 2120434679), (11, 1927667890), (22, 963833945), (41, 517179190), (55, 385533578), (82, 258589595), (110, 192766789), (205, 103435838), (410, 51717919), (451, 47016290), (902, 23508145), (1733, 12235630), (2255, 9403258), (2713, 7815830), (3466, 6117815), (4510, 4701629), (5426, 3907915), (8665, 2447126), (13565, 1563166), (17330, 1223563), (19063, 1112330), (27130, 781583), (29843, 710530), (38126, 556165), (59686, 355265), (71053, 298430), (95315, 222466), (111233, 190630), (142106, 149215)]