20199705561

素因数分解:

$3^4\times 7^2\times {\mathrm{1607}}^1\times {\mathrm{3167}}^1$

素因数の和:4800

約数の個数: 60

約数和(自身を含む): 35134311168

約数和(自身を除く): 14934605607

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 1607, 3167, 3969, 4821, 9501, 11249, 14463, 22169, 28503, 33747, 43389, 66507, 78743, 85509, 101241, 130167, 155183, 199521, 236229, 256527, 303723, 465549, 598563, 708687, 911169, 1396647, 1795689, 2126061, 4189941, 5089369, 6378183, 12569823, 15268107, 35625583, 45804321, 106876749, 137412963, 249379081, 320630247, 412238889, 748137243, 961890741, 2244411729, 2885672223, 6733235187, 20199705561]

約数ペア:

[(1, 20199705561), (3, 6733235187), (7, 2885672223), (9, 2244411729), (21, 961890741), (27, 748137243), (49, 412238889), (63, 320630247), (81, 249379081), (147, 137412963), (189, 106876749), (441, 45804321), (567, 35625583), (1323, 15268107), (1607, 12569823), (3167, 6378183), (3969, 5089369), (4821, 4189941), (9501, 2126061), (11249, 1795689), (14463, 1396647), (22169, 911169), (28503, 708687), (33747, 598563), (43389, 465549), (66507, 303723), (78743, 256527), (85509, 236229), (101241, 199521), (130167, 155183)]