20988396

素因数分解:

$2^2\times 3^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1$

素因数の和:194

約数の個数: 144

約数和(自身を含む): 65065728

約数和(自身を除く): 44077332

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 27, 33, 36, 39, 44, 52, 54, 66, 78, 81, 99, 108, 117, 132, 143, 151, 156, 162, 198, 234, 243, 286, 297, 302, 324, 351, 396, 429, 453, 468, 486, 572, 594, 604, 702, 858, 891, 906, 972, 1053, 1188, 1287, 1359, 1404, 1661, 1716, 1782, 1812, 1963, 2106, 2574, 2673, 2718, 3159, 3322, 3564, 3861, 3926, 4077, 4212, 4983, 5148, 5346, 5436, 5889, 6318, 6644, 7722, 7852, 8154, 9966, 10692, 11583, 11778, 12231, 12636, 14949, 15444, 16308, 17667, 19932, 21593, 23166, 23556, 24462, 29898, 34749, 35334, 36693, 43186, 44847, 46332, 48924, 53001, 59796, 64779, 69498, 70668, 73386, 86372, 89694, 106002, 129558, 134541, 138996, 146772, 159003, 179388, 194337, 212004, 259116, 269082, 318006, 388674, 403623, 477009, 538164, 583011, 636012, 777348, 807246, 954018, 1166022, 1614492, 1749033, 1908036, 2332044, 3498066, 5247099, 6996132, 10494198, 20988396]

約数ペア:

[(1, 20988396), (2, 10494198), (3, 6996132), (4, 5247099), (6, 3498066), (9, 2332044), (11, 1908036), (12, 1749033), (13, 1614492), (18, 1166022), (22, 954018), (26, 807246), (27, 777348), (33, 636012), (36, 583011), (39, 538164), (44, 477009), (52, 403623), (54, 388674), (66, 318006), (78, 269082), (81, 259116), (99, 212004), (108, 194337), (117, 179388), (132, 159003), (143, 146772), (151, 138996), (156, 134541), (162, 129558), (198, 106002), (234, 89694), (243, 86372), (286, 73386), (297, 70668), (302, 69498), (324, 64779), (351, 59796), (396, 53001), (429, 48924), (453, 46332), (468, 44847), (486, 43186), (572, 36693), (594, 35334), (604, 34749), (702, 29898), (858, 24462), (891, 23556), (906, 23166), (972, 21593), (1053, 19932), (1188, 17667), (1287, 16308), (1359, 15444), (1404, 14949), (1661, 12636), (1716, 12231), (1782, 11778), (1812, 11583), (1963, 10692), (2106, 9966), (2574, 8154), (2673, 7852), (2718, 7722), (3159, 6644), (3322, 6318), (3564, 5889), (3861, 5436), (3926, 5346), (4077, 5148), (4212, 4983)]