20777988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:337

約数の個数: 96

約数和(自身を含む): 61286400

約数和(自身を除く): 40508412

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 113, 132, 154, 199, 226, 231, 308, 339, 398, 452, 462, 597, 678, 791, 796, 924, 1194, 1243, 1356, 1393, 1582, 2189, 2373, 2388, 2486, 2786, 3164, 3729, 4179, 4378, 4746, 4972, 5572, 6567, 7458, 8358, 8701, 8756, 9492, 13134, 14916, 15323, 16716, 17402, 22487, 26103, 26268, 30646, 34804, 44974, 45969, 52206, 61292, 67461, 89948, 91938, 104412, 134922, 157409, 183876, 247357, 269844, 314818, 472227, 494714, 629636, 742071, 944454, 989428, 1484142, 1731499, 1888908, 2968284, 3462998, 5194497, 6925996, 10388994, 20777988]

約数ペア:

[(1, 20777988), (2, 10388994), (3, 6925996), (4, 5194497), (6, 3462998), (7, 2968284), (11, 1888908), (12, 1731499), (14, 1484142), (21, 989428), (22, 944454), (28, 742071), (33, 629636), (42, 494714), (44, 472227), (66, 314818), (77, 269844), (84, 247357), (113, 183876), (132, 157409), (154, 134922), (199, 104412), (226, 91938), (231, 89948), (308, 67461), (339, 61292), (398, 52206), (452, 45969), (462, 44974), (597, 34804), (678, 30646), (791, 26268), (796, 26103), (924, 22487), (1194, 17402), (1243, 16716), (1356, 15323), (1393, 14916), (1582, 13134), (2189, 9492), (2373, 8756), (2388, 8701), (2486, 8358), (2786, 7458), (3164, 6567), (3729, 5572), (4179, 4972), (4378, 4746)]