21261030

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{739}}^1$

素因数の和:893

約数の個数: 64

約数和(自身を含む): 58821120

約数和(自身を除く): 37560090

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 137, 210, 274, 411, 685, 739, 822, 959, 1370, 1478, 1918, 2055, 2217, 2877, 3695, 4110, 4434, 4795, 5173, 5754, 7390, 9590, 10346, 11085, 14385, 15519, 22170, 25865, 28770, 31038, 51730, 77595, 101243, 155190, 202486, 303729, 506215, 607458, 708701, 1012430, 1417402, 1518645, 2126103, 3037290, 3543505, 4252206, 7087010, 10630515, 21261030]

約数ペア:

[(1, 21261030), (2, 10630515), (3, 7087010), (5, 4252206), (6, 3543505), (7, 3037290), (10, 2126103), (14, 1518645), (15, 1417402), (21, 1012430), (30, 708701), (35, 607458), (42, 506215), (70, 303729), (105, 202486), (137, 155190), (210, 101243), (274, 77595), (411, 51730), (685, 31038), (739, 28770), (822, 25865), (959, 22170), (1370, 15519), (1478, 14385), (1918, 11085), (2055, 10346), (2217, 9590), (2877, 7390), (3695, 5754), (4110, 5173), (4434, 4795)]