20180262921

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{503}}^1\times {\mathrm{821}}^1$

素因数の和:1526

約数の個数: 64

約数和(自身を含む): 33408184320

約数和(自身を除く): 13227921399

約数列:

[1, 3, 7, 13, 21, 39, 91, 179, 273, 503, 537, 821, 1253, 1509, 2327, 2463, 3521, 3759, 5747, 6539, 6981, 10563, 10673, 16289, 17241, 19617, 32019, 45773, 48867, 74711, 90037, 137319, 146959, 224133, 270111, 412963, 440877, 630259, 1028713, 1170481, 1238889, 1890777, 1910467, 2890741, 3086139, 3511443, 5368519, 5731401, 8193367, 8672223, 13373269, 16105557, 24580101, 37579633, 40119807, 73920377, 112738899, 221761131, 517442639, 960964901, 1552327917, 2882894703, 6726754307, 20180262921]

約数ペア:

[(1, 20180262921), (3, 6726754307), (7, 2882894703), (13, 1552327917), (21, 960964901), (39, 517442639), (91, 221761131), (179, 112738899), (273, 73920377), (503, 40119807), (537, 37579633), (821, 24580101), (1253, 16105557), (1509, 13373269), (2327, 8672223), (2463, 8193367), (3521, 5731401), (3759, 5368519), (5747, 3511443), (6539, 3086139), (6981, 2890741), (10563, 1910467), (10673, 1890777), (16289, 1238889), (17241, 1170481), (19617, 1028713), (32019, 630259), (45773, 440877), (48867, 412963), (74711, 270111), (90037, 224133), (137319, 146959)]