19936377

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 32722560

約数和(自身を除く): 12786183

約数列:

[1, 3, 9, 19, 23, 37, 57, 69, 111, 137, 171, 207, 333, 411, 437, 703, 851, 1233, 1311, 2109, 2553, 2603, 3151, 3933, 5069, 6327, 7659, 7809, 9453, 15207, 16169, 23427, 28359, 45621, 48507, 59869, 96311, 116587, 145521, 179607, 288933, 349761, 538821, 866799, 1049283, 2215153, 6645459, 19936377]

約数ペア:

[(1, 19936377), (3, 6645459), (9, 2215153), (19, 1049283), (23, 866799), (37, 538821), (57, 349761), (69, 288933), (111, 179607), (137, 145521), (171, 116587), (207, 96311), (333, 59869), (411, 48507), (437, 45621), (703, 28359), (851, 23427), (1233, 16169), (1311, 15207), (2109, 9453), (2553, 7809), (2603, 7659), (3151, 6327), (3933, 5069)]