21111888

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3307}}^1$

素因数の和:3344

約数の個数: 80

約数和(自身を含む): 65630720

約数和(自身を除く): 44518832

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 24, 28, 38, 42, 48, 56, 57, 76, 84, 112, 114, 133, 152, 168, 228, 266, 304, 336, 399, 456, 532, 798, 912, 1064, 1596, 2128, 3192, 3307, 6384, 6614, 9921, 13228, 19842, 23149, 26456, 39684, 46298, 52912, 62833, 69447, 79368, 92596, 125666, 138894, 158736, 185192, 188499, 251332, 277788, 370384, 376998, 439831, 502664, 555576, 753996, 879662, 1005328, 1111152, 1319493, 1507992, 1759324, 2638986, 3015984, 3518648, 5277972, 7037296, 10555944, 21111888]

約数ペア:

[(1, 21111888), (2, 10555944), (3, 7037296), (4, 5277972), (6, 3518648), (7, 3015984), (8, 2638986), (12, 1759324), (14, 1507992), (16, 1319493), (19, 1111152), (21, 1005328), (24, 879662), (28, 753996), (38, 555576), (42, 502664), (48, 439831), (56, 376998), (57, 370384), (76, 277788), (84, 251332), (112, 188499), (114, 185192), (133, 158736), (152, 138894), (168, 125666), (228, 92596), (266, 79368), (304, 69447), (336, 62833), (399, 52912), (456, 46298), (532, 39684), (798, 26456), (912, 23149), (1064, 19842), (1596, 13228), (2128, 9921), (3192, 6614), (3307, 6384)]