21679476

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19853}}^1$

素因数の和:19880

約数の個数: 48

約数和(自身を含む): 62262144

約数和(自身を除く): 40582668

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 19853, 39706, 59559, 79412, 119118, 138971, 238236, 258089, 277942, 416913, 516178, 555884, 774267, 833826, 1032356, 1548534, 1667652, 1806623, 3097068, 3613246, 5419869, 7226492, 10839738, 21679476]

約数ペア:

[(1, 21679476), (2, 10839738), (3, 7226492), (4, 5419869), (6, 3613246), (7, 3097068), (12, 1806623), (13, 1667652), (14, 1548534), (21, 1032356), (26, 833826), (28, 774267), (39, 555884), (42, 516178), (52, 416913), (78, 277942), (84, 258089), (91, 238236), (156, 138971), (182, 119118), (273, 79412), (364, 59559), (546, 39706), (1092, 19853)]