20989368

素因数分解:

$2^3\times 3^6\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:144

約数の個数: 112

約数和(自身を含む): 60989400

約数和(自身を除く): 40000032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 59, 61, 72, 81, 108, 118, 122, 162, 177, 183, 216, 236, 243, 244, 324, 354, 366, 472, 486, 488, 531, 549, 648, 708, 729, 732, 972, 1062, 1098, 1416, 1458, 1464, 1593, 1647, 1944, 2124, 2196, 2916, 3186, 3294, 3599, 4248, 4392, 4779, 4941, 5832, 6372, 6588, 7198, 9558, 9882, 10797, 12744, 13176, 14337, 14396, 14823, 19116, 19764, 21594, 28674, 28792, 29646, 32391, 38232, 39528, 43011, 43188, 44469, 57348, 59292, 64782, 86022, 86376, 88938, 97173, 114696, 118584, 129564, 172044, 177876, 194346, 259128, 291519, 344088, 355752, 388692, 583038, 777384, 874557, 1166076, 1749114, 2332152, 2623671, 3498228, 5247342, 6996456, 10494684, 20989368]

約数ペア:

[(1, 20989368), (2, 10494684), (3, 6996456), (4, 5247342), (6, 3498228), (8, 2623671), (9, 2332152), (12, 1749114), (18, 1166076), (24, 874557), (27, 777384), (36, 583038), (54, 388692), (59, 355752), (61, 344088), (72, 291519), (81, 259128), (108, 194346), (118, 177876), (122, 172044), (162, 129564), (177, 118584), (183, 114696), (216, 97173), (236, 88938), (243, 86376), (244, 86022), (324, 64782), (354, 59292), (366, 57348), (472, 44469), (486, 43188), (488, 43011), (531, 39528), (549, 38232), (648, 32391), (708, 29646), (729, 28792), (732, 28674), (972, 21594), (1062, 19764), (1098, 19116), (1416, 14823), (1458, 14396), (1464, 14337), (1593, 13176), (1647, 12744), (1944, 10797), (2124, 9882), (2196, 9558), (2916, 7198), (3186, 6588), (3294, 6372), (3599, 5832), (4248, 4941), (4392, 4779)]