209920462821

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{311}}^1\times {\mathrm{557}}^1\times {\mathrm{4643}}^1$

素因数の和:5546

約数の個数: 48

約数和(自身を含む): 315315711360

約数和(自身を除く): 105395248539

約数列:

[1, 3, 9, 29, 87, 261, 311, 557, 933, 1671, 2799, 4643, 5013, 9019, 13929, 16153, 27057, 41787, 48459, 81171, 134647, 145377, 173227, 403941, 519681, 1211823, 1443973, 1559043, 2586151, 4331919, 5023583, 7758453, 12995757, 15070749, 23275359, 41875217, 45212247, 74998379, 125625651, 224995137, 376876953, 674985411, 804292961, 2412878883, 7238636649, 23324495869, 69973487607, 209920462821]

約数ペア:

[(1, 209920462821), (3, 69973487607), (9, 23324495869), (29, 7238636649), (87, 2412878883), (261, 804292961), (311, 674985411), (557, 376876953), (933, 224995137), (1671, 125625651), (2799, 74998379), (4643, 45212247), (5013, 41875217), (9019, 23275359), (13929, 15070749), (16153, 12995757), (27057, 7758453), (41787, 5023583), (48459, 4331919), (81171, 2586151), (134647, 1559043), (145377, 1443973), (173227, 1211823), (403941, 519681)]