20971782

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:182

約数の個数: 96

約数和(自身を含む): 53071200

約数和(自身を除く): 32099418

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 38, 39, 53, 57, 78, 89, 106, 114, 117, 159, 171, 178, 234, 247, 267, 318, 342, 477, 494, 534, 689, 741, 801, 954, 1007, 1157, 1378, 1482, 1602, 1691, 2014, 2067, 2223, 2314, 3021, 3382, 3471, 4134, 4446, 4717, 5073, 6042, 6201, 6942, 9063, 9434, 10146, 10413, 12402, 13091, 14151, 15219, 18126, 20826, 21983, 26182, 28302, 30438, 39273, 42453, 43966, 61321, 65949, 78546, 84906, 89623, 117819, 122642, 131898, 179246, 183963, 197847, 235638, 268869, 367926, 395694, 537738, 551889, 806607, 1103778, 1165099, 1613214, 2330198, 3495297, 6990594, 10485891, 20971782]

約数ペア:

[(1, 20971782), (2, 10485891), (3, 6990594), (6, 3495297), (9, 2330198), (13, 1613214), (18, 1165099), (19, 1103778), (26, 806607), (38, 551889), (39, 537738), (53, 395694), (57, 367926), (78, 268869), (89, 235638), (106, 197847), (114, 183963), (117, 179246), (159, 131898), (171, 122642), (178, 117819), (234, 89623), (247, 84906), (267, 78546), (318, 65949), (342, 61321), (477, 43966), (494, 42453), (534, 39273), (689, 30438), (741, 28302), (801, 26182), (954, 21983), (1007, 20826), (1157, 18126), (1378, 15219), (1482, 14151), (1602, 13091), (1691, 12402), (2014, 10413), (2067, 10146), (2223, 9434), (2314, 9063), (3021, 6942), (3382, 6201), (3471, 6042), (4134, 5073), (4446, 4717)]