21853040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1307}}^1$

素因数の和:1350

約数の個数: 80

約数和(自身を含む): 58389120

約数和(自身を除く): 36536080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1307, 1520, 1672, 2090, 2614, 3344, 4180, 5228, 6535, 8360, 10456, 13070, 14377, 16720, 20912, 24833, 26140, 28754, 49666, 52280, 57508, 71885, 99332, 104560, 115016, 124165, 143770, 198664, 230032, 248330, 273163, 287540, 397328, 496660, 546326, 575080, 993320, 1092652, 1150160, 1365815, 1986640, 2185304, 2731630, 4370608, 5463260, 10926520, 21853040]

約数ペア:

[(1, 21853040), (2, 10926520), (4, 5463260), (5, 4370608), (8, 2731630), (10, 2185304), (11, 1986640), (16, 1365815), (19, 1150160), (20, 1092652), (22, 993320), (38, 575080), (40, 546326), (44, 496660), (55, 397328), (76, 287540), (80, 273163), (88, 248330), (95, 230032), (110, 198664), (152, 143770), (176, 124165), (190, 115016), (209, 104560), (220, 99332), (304, 71885), (380, 57508), (418, 52280), (440, 49666), (760, 28754), (836, 26140), (880, 24833), (1045, 20912), (1307, 16720), (1520, 14377), (1672, 13070), (2090, 10456), (2614, 8360), (3344, 6535), (4180, 5228)]