201715181919

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^2\times {\mathrm{193}}^1$

素因数の和:629

約数の個数: 72

約数和(自身を含む): 302499393456

約数和(自身を除く): 100784211537

約数列:

[1, 3, 9, 67, 101, 131, 193, 201, 303, 393, 579, 603, 909, 1179, 1737, 6767, 8777, 12931, 13231, 17161, 19493, 20301, 25283, 26331, 38793, 39693, 51483, 58479, 60903, 75849, 78993, 116379, 119079, 154449, 175437, 227547, 886477, 1149787, 1306031, 1693961, 1733261, 2553583, 2659431, 3312073, 3449361, 3918093, 5081883, 5199783, 7660749, 7978293, 9936219, 10348083, 11754279, 15245649, 15599349, 22982247, 29808657, 116128487, 171090061, 221908891, 334519373, 348385461, 513270183, 665726673, 1003558119, 1045156383, 1539810549, 1997180019, 3010674357, 22412797991, 67238393973, 201715181919]

約数ペア:

[(1, 201715181919), (3, 67238393973), (9, 22412797991), (67, 3010674357), (101, 1997180019), (131, 1539810549), (193, 1045156383), (201, 1003558119), (303, 665726673), (393, 513270183), (579, 348385461), (603, 334519373), (909, 221908891), (1179, 171090061), (1737, 116128487), (6767, 29808657), (8777, 22982247), (12931, 15599349), (13231, 15245649), (17161, 11754279), (19493, 10348083), (20301, 9936219), (25283, 7978293), (26331, 7660749), (38793, 5199783), (39693, 5081883), (51483, 3918093), (58479, 3449361), (60903, 3312073), (75849, 2659431), (78993, 2553583), (116379, 1733261), (119079, 1693961), (154449, 1306031), (175437, 1149787), (227547, 886477)]