19981852281

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{3019}}^1$

素因数の和:3243

約数の個数: 64

約数和(自身を含む): 31311360000

約数和(自身を除く): 11329507719

約数列:

[1, 3, 9, 27, 29, 79, 87, 107, 237, 261, 321, 711, 783, 963, 2133, 2291, 2889, 3019, 3103, 6873, 8453, 9057, 9309, 20619, 25359, 27171, 27927, 61857, 76077, 81513, 83781, 87551, 228231, 238501, 245137, 262653, 323033, 715503, 735411, 787959, 969099, 2146509, 2206233, 2363877, 2907297, 6439527, 6618699, 6916529, 8721891, 9367957, 20749587, 25519607, 28103871, 62248761, 76558821, 84311613, 186746283, 229676463, 252934839, 689029389, 740068603, 2220205809, 6660617427, 19981852281]

約数ペア:

[(1, 19981852281), (3, 6660617427), (9, 2220205809), (27, 740068603), (29, 689029389), (79, 252934839), (87, 229676463), (107, 186746283), (237, 84311613), (261, 76558821), (321, 62248761), (711, 28103871), (783, 25519607), (963, 20749587), (2133, 9367957), (2291, 8721891), (2889, 6916529), (3019, 6618699), (3103, 6439527), (6873, 2907297), (8453, 2363877), (9057, 2206233), (9309, 2146509), (20619, 969099), (25359, 787959), (27171, 735411), (27927, 715503), (61857, 323033), (76077, 262653), (81513, 245137), (83781, 238501), (87551, 228231)]