20845755

素因数分解:

$3^6\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:92

約数の個数: 112

約数和(自身を含む): 46168320

約数和(自身を除く): 25322565

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 43, 45, 57, 63, 81, 95, 105, 129, 133, 135, 171, 189, 215, 243, 285, 301, 315, 387, 399, 405, 513, 567, 645, 665, 729, 817, 855, 903, 945, 1161, 1197, 1215, 1505, 1539, 1701, 1935, 1995, 2451, 2565, 2709, 2835, 3483, 3591, 3645, 4085, 4515, 4617, 5103, 5719, 5805, 5985, 7353, 7695, 8127, 8505, 10449, 10773, 12255, 13545, 13851, 17157, 17415, 17955, 22059, 23085, 24381, 25515, 28595, 31347, 32319, 36765, 40635, 51471, 52245, 53865, 66177, 69255, 73143, 85785, 96957, 110295, 121905, 154413, 156735, 161595, 198531, 219429, 257355, 330885, 365715, 463239, 484785, 595593, 772065, 992655, 1097145, 1389717, 2316195, 2977965, 4169151, 6948585, 20845755]

約数ペア:

[(1, 20845755), (3, 6948585), (5, 4169151), (7, 2977965), (9, 2316195), (15, 1389717), (19, 1097145), (21, 992655), (27, 772065), (35, 595593), (43, 484785), (45, 463239), (57, 365715), (63, 330885), (81, 257355), (95, 219429), (105, 198531), (129, 161595), (133, 156735), (135, 154413), (171, 121905), (189, 110295), (215, 96957), (243, 85785), (285, 73143), (301, 69255), (315, 66177), (387, 53865), (399, 52245), (405, 51471), (513, 40635), (567, 36765), (645, 32319), (665, 31347), (729, 28595), (817, 25515), (855, 24381), (903, 23085), (945, 22059), (1161, 17955), (1197, 17415), (1215, 17157), (1505, 13851), (1539, 13545), (1701, 12255), (1935, 10773), (1995, 10449), (2451, 8505), (2565, 8127), (2709, 7695), (2835, 7353), (3483, 5985), (3591, 5805), (3645, 5719), (4085, 5103), (4515, 4617)]