21437388

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{877}}^1$

素因数の和:991

約数の個数: 72

約数和(自身を含む): 62640032

約数和(自身を除く): 41202644

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 97, 126, 194, 252, 291, 388, 582, 679, 873, 877, 1164, 1358, 1746, 1754, 2037, 2631, 2716, 3492, 3508, 4074, 5262, 6111, 6139, 7893, 8148, 10524, 12222, 12278, 15786, 18417, 24444, 24556, 31572, 36834, 55251, 73668, 85069, 110502, 170138, 221004, 255207, 340276, 510414, 595483, 765621, 1020828, 1190966, 1531242, 1786449, 2381932, 3062484, 3572898, 5359347, 7145796, 10718694, 21437388]

約数ペア:

[(1, 21437388), (2, 10718694), (3, 7145796), (4, 5359347), (6, 3572898), (7, 3062484), (9, 2381932), (12, 1786449), (14, 1531242), (18, 1190966), (21, 1020828), (28, 765621), (36, 595483), (42, 510414), (63, 340276), (84, 255207), (97, 221004), (126, 170138), (194, 110502), (252, 85069), (291, 73668), (388, 55251), (582, 36834), (679, 31572), (873, 24556), (877, 24444), (1164, 18417), (1358, 15786), (1746, 12278), (1754, 12222), (2037, 10524), (2631, 8148), (2716, 7893), (3492, 6139), (3508, 6111), (4074, 5262)]