21871584

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{571}}^1$

素因数の和:613

約数の個数: 144

約数和(自身を含む): 74954880

約数和(自身を除く): 53083296

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 28, 32, 36, 38, 42, 48, 56, 57, 63, 72, 76, 84, 96, 112, 114, 126, 133, 144, 152, 168, 171, 224, 228, 252, 266, 288, 304, 336, 342, 399, 456, 504, 532, 571, 608, 672, 684, 798, 912, 1008, 1064, 1142, 1197, 1368, 1596, 1713, 1824, 2016, 2128, 2284, 2394, 2736, 3192, 3426, 3997, 4256, 4568, 4788, 5139, 5472, 6384, 6852, 7994, 9136, 9576, 10278, 10849, 11991, 12768, 13704, 15988, 18272, 19152, 20556, 21698, 23982, 27408, 31976, 32547, 35973, 38304, 41112, 43396, 47964, 54816, 63952, 65094, 71946, 75943, 82224, 86792, 95928, 97641, 127904, 130188, 143892, 151886, 164448, 173584, 191856, 195282, 227829, 260376, 287784, 303772, 347168, 383712, 390564, 455658, 520752, 575568, 607544, 683487, 781128, 911316, 1041504, 1151136, 1215088, 1366974, 1562256, 1822632, 2430176, 2733948, 3124512, 3645264, 5467896, 7290528, 10935792, 21871584]

約数ペア:

[(1, 21871584), (2, 10935792), (3, 7290528), (4, 5467896), (6, 3645264), (7, 3124512), (8, 2733948), (9, 2430176), (12, 1822632), (14, 1562256), (16, 1366974), (18, 1215088), (19, 1151136), (21, 1041504), (24, 911316), (28, 781128), (32, 683487), (36, 607544), (38, 575568), (42, 520752), (48, 455658), (56, 390564), (57, 383712), (63, 347168), (72, 303772), (76, 287784), (84, 260376), (96, 227829), (112, 195282), (114, 191856), (126, 173584), (133, 164448), (144, 151886), (152, 143892), (168, 130188), (171, 127904), (224, 97641), (228, 95928), (252, 86792), (266, 82224), (288, 75943), (304, 71946), (336, 65094), (342, 63952), (399, 54816), (456, 47964), (504, 43396), (532, 41112), (571, 38304), (608, 35973), (672, 32547), (684, 31976), (798, 27408), (912, 23982), (1008, 21698), (1064, 20556), (1142, 19152), (1197, 18272), (1368, 15988), (1596, 13704), (1713, 12768), (1824, 11991), (2016, 10849), (2128, 10278), (2284, 9576), (2394, 9136), (2736, 7994), (3192, 6852), (3426, 6384), (3997, 5472), (4256, 5139), (4568, 4788)]