21649992

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:483

約数の個数: 128

約数和(自身を含む): 69672960

約数和(自身を除く): 48022968

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 23, 24, 26, 28, 39, 42, 46, 52, 56, 69, 78, 84, 91, 92, 104, 138, 156, 161, 168, 182, 184, 273, 276, 299, 312, 322, 364, 431, 483, 546, 552, 598, 644, 728, 862, 897, 966, 1092, 1196, 1288, 1293, 1724, 1794, 1932, 2093, 2184, 2392, 2586, 3017, 3448, 3588, 3864, 4186, 5172, 5603, 6034, 6279, 7176, 8372, 9051, 9913, 10344, 11206, 12068, 12558, 16744, 16809, 18102, 19826, 22412, 24136, 25116, 29739, 33618, 36204, 39221, 39652, 44824, 50232, 59478, 67236, 69391, 72408, 78442, 79304, 117663, 118956, 128869, 134472, 138782, 156884, 208173, 235326, 237912, 257738, 277564, 313768, 386607, 416346, 470652, 515476, 555128, 773214, 832692, 902083, 941304, 1030952, 1546428, 1665384, 1804166, 2706249, 3092856, 3608332, 5412498, 7216664, 10824996, 21649992]

約数ペア:

[(1, 21649992), (2, 10824996), (3, 7216664), (4, 5412498), (6, 3608332), (7, 3092856), (8, 2706249), (12, 1804166), (13, 1665384), (14, 1546428), (21, 1030952), (23, 941304), (24, 902083), (26, 832692), (28, 773214), (39, 555128), (42, 515476), (46, 470652), (52, 416346), (56, 386607), (69, 313768), (78, 277564), (84, 257738), (91, 237912), (92, 235326), (104, 208173), (138, 156884), (156, 138782), (161, 134472), (168, 128869), (182, 118956), (184, 117663), (273, 79304), (276, 78442), (299, 72408), (312, 69391), (322, 67236), (364, 59478), (431, 50232), (483, 44824), (546, 39652), (552, 39221), (598, 36204), (644, 33618), (728, 29739), (862, 25116), (897, 24136), (966, 22412), (1092, 19826), (1196, 18102), (1288, 16809), (1293, 16744), (1724, 12558), (1794, 12068), (1932, 11206), (2093, 10344), (2184, 9913), (2392, 9051), (2586, 8372), (3017, 7176), (3448, 6279), (3588, 6034), (3864, 5603), (4186, 5172)]